Climbing is the activity of using one’s hands, feet, or any other part of the body to ascend a steep object. It is done recreationally, competitively, in trades that rely on it, and in emergency rescue and military operations. It is done indoors and out, on natural and manmade structures.
Climbers on Mount Fitz Roy,Argentina.
Climbing activities include:
- Bouldering: Ascending boulders or small outcrops, often with climbing shoes and a chalk bag or bucket. Usually, instead of using a safety rope from above, injury is avoided using a crash pad and a human spotter (to direct a falling climber on to the pad. They can also give beta, or advice)
- Buildering: Ascending the exterior skeletons of buildings, typically without protective equipment.
- Canyoneering: Climbing along canyons for sport or recreation.
- Chalk climbing: Ascending chalk cliffs uses some of the same techniques as ice climbing .
- Competition Climbing: A formal, competitive sport of recent origins, normally practiced on artificial walls that resemble natural rock formations. The International Federation of Sport Climbing (IFSC) is the official organization governing competition climbing worldwide and is recognized by the IOC and GAISF and is a member of the International World Games Association (IWGA). Competition Climbing has three major disciplines: Lead, Bouldering and Speed.
- Ice climbing: Ascending ice or hard snow formations using special equipment, usually ice axes and crampons. Techniques of protecting the climber are similar to those of rock climbing, with protective devices (such as ice screws and snow wedges) adapted to frozen conditions.
- Indoor climbing: Top roping, lead climbing, and bouldering artificial walls with bolted holds in a climbing gym.
- Mountaineering: Ascending mountains for sport or recreation. It often involves rock and/or ice climbing.
- Pole climbing (gymnastic): Climbing poles and masts without equipment.
- Lumberjack tree-trimming and competitive tree-trunk or pole climbing for speed using spikes and belts.
- Rock climbing: Ascending rock formations, often using climbing shoes and a chalk bag. Equipment such as ropes, bolts, nuts, hexes and camming devices are normally employed, either as a safeguard or for artificial aid.
- Rope access: Industrial climbing, usually abseiling, as an alternative to scaffolding for short works on exposed structures.
- Rope climbing: Climbing a short, thick rope for speed. Not to be confused with roped climbing, as in rock or ice climbing.
- Scrambling which includes easy rock climbing, and is considered part of hillwalking.
- Sport climbing is a form of rock climbing that relies on permanent anchors fixed to the rock, and possibly bolts, forprotection, (in contrast with traditional climbing, where the rock is typically devoid of fixed anchors and bolts, and where climbers must place removable protection as they climb).
- Top roping: Ascending a rock climbing route protected by a rope anchored at the top and protected by a belayer below
- Traditional climbing (more casually known as Trad climbing) is a form of climbing without fixed anchors and bolts. Climbers place removable protection such as camming devices, nuts, and other passive and active protection that holds the rope to the rock (via the use of carabiners and webbing/slings) in the event of a fall and/or when weighted by a climber.
- Free solo climbing: Climbing without ropes or protection.
- Tree climbing: Recreationally ascending trees using ropes and other protective equipment.
- A tower climber is a professional who climbs broadcasting or telecommunication towers or masts for maintenance or repair.
Rock, ice and tree climbing all usually use ropes for safety or aid. Pole climbing and rope climbing were among the first exercises to be included in the origins of modern gymnastics in the late 18th century and early 19th century.
Rock climbers on Valkyrie atThe Roaches in Staffordshire, England.
A competitor in a rope climbing event, at Lyon’s Part-Dieu shopping centre.
An ice climber using ice axes and crampons.
In lead climbing using a dynamic rope, the fall factor (f) is the ratio of the height (h) a climber falls before the climber’s rope begins to stretch and the rope length (L) available to absorb the energy of the fall.
The impact force is defined as the maximum tension in the rope when a climber falls. Using the common rope model of an undamped harmonic oscillator (HO) the impact force Fmax in the rope is given by:
where mg is the climber’s weight, h is the fall height and k is the spring constant of the rope. Using theelastic modulus E = k L/q which is a material constant, the impact force depends only on the fall factor f, i.e. on the ratio h/L, the cross section q of the rope, and the climber’s weight. The more rope is available, the softer the rope becomes which is just compensating the higher fall energy. The maximum force on the climber is Fmax reduced by the climber’s weight mg. The above formula can be easily obtained by the law of conservation of energy at the time of maximum tension resp. maximum elongation xmax of the rope:
Using the HO model to obtain the impact force of real climbing ropes as a function of fall height h and climber’s weightmg, one must know the experimental value for E of a given rope. However, rope manufacturers give only the rope’s impact force F0 and its static and dynamic elongations that are measured under standard UIAA fall conditions: A fall height h0of 2 x 2.3 m with an available rope length L0 = 2.6m leads to a fall factor f0 = h0/L0 = 1.77 and a fall velocity v0 = (2gh0)1/2 = 9.5 m/s at the end of falling the distance h0. The mass m0 used in the fall is 80 kg. Using these values to eliminate the unknown quantity E leads to an expression of the impact force as a function of arbitrary fall heights h and arbitrary fall factors f of the form:
This simple undamped harmonic oscillator model of a rope, however, cannot explain real ropes. First, it is evident that real ropes hardly oscillate after a fall. After one period the rope has settled and stopped oscillating. The HO also cannot explain correctly the experimental values of a climbing rope such as its static and dynamic elongation and the correct relations to its impact force. This can be corrected only by considering friction in the rope. On the basis of a Viscoelastic Standard Linear Solid model one gets more complicated expressions for impact force and static and dynamic elongations.Friction in the rope leads to energy dissipation and thus to a reduction of the impact force compared to the undamped harmonic oscillator model. It also leads to an additional elongation of the rope. The diagram shows how the impact forces of real climbing ropes under standard UIAA fall conditions relate to their measured dynamic elongations. It also shows that the HO model cannot explain these dependencies of real climbing ropes.
When the rope is clipped into several carabiners between the climber and the belayer, an additional type of friction occurs, the so-called dry friction between the rope and particularly the last clipped carabiner. Dry friction leads to an effective rope length smaller than the available length L and thus increases the impact force.Dry friction is also responsible for the rope drag a climber has to overcome in order to move forward. It can be expressed by an effective mass of the rope that the climber has to pull which is always larger than the rope mass itself. It depends exponentially on the sum of the angles of the direction changes the climber has made.
A fall factor of two is the maximum that is possible in a lead climbing fall, since the length of an arrested fall cannot exceed two times the length of the rope. Normally, a factor-2 fall can occur only when a lead climber who has placed no protection falls past the belayer (two times the distance of the rope length between them), or the anchor if the climber is solo climbing the route using a self-belay. As soon as the climber clips the rope into protection above the belay, the distance of the potential fall as a function of rope length is lessened, and the fall factor drops below 2.
A fall of 20 feet exerts more force on the climber and climbing equipment if it occurs with 10 feet of rope out (i.e. the climber has placed no protection and falls from 10 feet above the belayer to 10 feet below—a factor 2 fall) than if it occurs 100 feet above the belayer (a fall factor of 0.2), in which case the stretch of the rope more effectively cushions the fall.
Fall factors above two
In falls occurring on a via ferrata, fall factors can be much higher. This is possible because the length of rope between harness and carabiner is short and fixed, while the distance the climber can fall depends on the gaps between anchor points of the safety cable.
A wide range of equipment is used during rock or any other type of climbing. The most popular types of climbing equipment are briefly described in this article. The article on protecting a climb describes equipment commonly used to protect a climber against the consequences of a fall.
Climber with helmet, harness, rope, spring-loaded cams, nuts, a tricam, and quickdraws
Rope, cord and webbing
Climbing ropes are typically of kernmantle construction, consisting of a core (kern) of long twisted fibres and an outer sheath (mantle) of woven coloured fibres. The core provides about 80% of the tensile strength, while the sheath is a durable layer that protects the core and gives the rope desirable handling characteristics.
Ropes used for climbing can be divided into two classes: dynamic ropes and low elongation ropes (sometimes called “static” ropes). Dynamic ropes are designed to absorb the energy of a falling climber, and are usually used as Belaying ropes. When a climber falls, the rope stretches, reducing the maximum force experienced by the climber, their belayer, and equipment. Low elongation ropes stretch much less, and are usually used in anchoring systems. They are also used for abseiling (rappelling)and as fixed ropes climbed with ascenders.
Modern webbing or “tape” is made of nylon or Spectra/Dyneema, or a combination of the two. Climbing-specific nylon webbing is generally tubular webbing, that is, it is a tube of nylon pressed flat. It is very strong, generally rated in excess of 9 kN, or about 2,020 pounds of force. Dyneema is even stronger, often rated above 20 kN (about 4,500 lbf or 2000 kg) and as high as 27 kN (about 6,070 lbf or 2700 kg). In 2010, UK-based DMM performed fall factor 1 and 2 tests on various Dyneema and Nylon webbings, showing Dyneema slings can fail even under 60 cm falls. Tying knots in Dyneema webbing was proven to have reduced the total amount of supported force by as much as half.
When webbing is sewn or tied together at the ends, it becomes a sling or runner, and if you clip a carabiner to each end of the sling, you have a quickdraw. These loops are made one of two ways—sewn (using reinforced stitching) or tied. Both ways of forming runners have advantages and drawbacks, and it is for the individual climber to choose which to use. Generally speaking, most climbers carry a few of both types. It is also important to note that only nylon can be safely knotted into a runner (usually using a water knot or beer knot), Dyneema is always sewn because the fibers are too slippery to hold a knot under weight.
Webbing has many uses such as:
- Extending the distance between protection and a tie-in point.
- An anchor around a tree or rock.
- An anchor extension or equalization.
- Makeshift harnesses.
- Carrying equipment (clipped to a sling worn over the shoulder).
- Protecting a rope that hangs over a sharp edge (tubular webbing).
Rope and climber’s shoes
Carabiners are metal loops with spring-loaded gates (openings), used as connectors. Once made primarily from steel, almost all carabiners for recreational climbing are made from a light weight aluminum alloy. Steel carabiners are much heavier, but harder wearing, and therefore are often used by instructors when working with groups.
Carabiners exist in various forms; the shape of the carabiner and the type of gate varies according to the use for which it is intended. There are two major varieties: locking and non-locking carabiners. Locking carabiners offer a method of preventing the gate from opening when in use. Locking carabiners are used for important connections, such as at the anchor point or a belay device. There are several different types of locking carabiners, including a twist-lock and a thread-lock. Twist-lock carabiners are commonly referred to as “auto-locking carabiners” due to their spring-loaded locking mechanism. Non-locking carabiners are commonly found as a component of quickdraws.
Carabiners are made with many different types of gates including wire-gate, bent-gate, and straight-gate. The different gates have different strengths and uses. Most locking carabiners utilize a straight-gate. Bent-gate and wire-gate carabiners are usually found on the rope-end of quickdraws, as they facilitate easier rope clipping than straight-gate carabiners.
Carabiners are also known by many slang names including biner (pronounced beaner) or Krab.
First climber who used a carabiner for climbing was German climber Otto Herzog.
Quickdraws (often referred to as “draws”) are used by climbers to connect ropes to bolt anchors, or to other traditional protection, allowing the rope to move through the anchoring system with minimal friction. A quickdraw consists of two non-locking carabiners connected together by a short, pre-sewn loop of webbing. Alternatively, and quite regularly, the pre-sewn webbing is replaced by a sling of the above-mentioned dyneema/nylon webbing. This is usually of a 60 cm loop and can be tripled over between the carabiners to form a 20 cm loop. Then when more length is needed the sling can be turned back into a 60 cm loop offering more versatility than a pre-sewn loop. Carabiners used for clipping into the protection generally have a straight gate, decreasing the possibility of the carabiner accidentally unclipping from the protection. The carabiner into which the rope is clipped often has a bent gate, so that clipping the rope into this carabiner can be done quickly and easily. Quickdraws are also frequently used in indoor lead climbing. The quickdraw may be pre-attached to the wall. When a climber ascends the wall, (s)he must clip the rope through the quickdraw in order to maintain safety. The safest, easiest and most effective place to clip into a quickdraw is when it is at waist height.
A harness is a system used for connecting the rope to the climber. There are two loops at the front of the harness where the climber ties into the rope at the working end using a figure-eight knot. Most harnesses used in climbing are preconstructed and are worn around the pelvis and hips, although other types are used occasionally.
Different types of climbing warrant particular features for harnesses. Sport climbers typically use minimalistic harnesses, some with sewn-on gear loops. Alpine climbers often choose lightweight harnesses, perhaps with detachable leg loops. Big Wall climbers generally prefer padded waist belts and leg loops. There are also full body harnesses for children, whose pelvises may be too narrow to support a stan
dard harness safely. These harnesses prevent children from falling even when inverted, and are either manufactured for children or constructed out of webbing. Some climbers use full body harnesses when there is a chance of inverting, or when carrying a heavy bag. There are also chest harnesses, which are used only in combination with a sit harness; this combination provides the same advantages as a full body harness. However, test results from UIAA show that chest harnesses can put more impact on the neck than sit harnesses, making them slightly more dangerous to use.
Apart from these harnesses, there are also caving and canyoning harnesses, which all serve different purposes. For example, a caving harness is made of tough waterproof and unpadded material, with dual attachment points. Releasing the maillon from these attachment points loosens the harness quickly.
Canyoning harnesses are somewhat like climbing harnesses, often without the padding, but with a seat protector, making it more comfortable to rappel. These usually have a single attachment point of Dyneema.
Belay devices are mechanical friction brake devices used to control a rope when belaying. Their main purpose is to allow the rope to be locked off with minimal effort to arrest a climber’s fall. Multiple kinds of belay devices exist, some of which may additionally be used as descenders for controlled descent on a rope, as in abseiling or rappelling.
Belay devices are available in both passive and active designs:
Passive belay devices rely on the belayer’s brake hand and a carabiner to lock off the rope. Sticht plates and the Air Traffic Controller (ATC) line of belay devices by Black Diamond Equipment are examples of passive belay devices. If a belay device is lost or damaged, a Munter hitch on a carabiner can be used as an improvised passive belay device.
Active belay devices have a built-in mechanism that locks off the rope without the help of any other pieces of equipment. The GriGri by Petzl is an example of an active belay device. The offset cam in the GriGri locks off the rope automatically to catch a falling climber, much like a seat belt in a car locks off to hold a passenger securely.
However, the GriGri’s automatic action can lead to less alert belayers. The GriGri is not a hands-free belay device and constant vigilance is required by the belayer no matter what kind of device is used. One common mistake with the GriGri is reverse threading it, rendering the camming action useless.Though, in a fall with a reverse threaded GriGri, bending the rope sharply under the GriGri provides more than enough friction to hold a falling climber as long as the belayer locks off the rope as they would with a tube style (passive) device.
It’s important to note that in the event of a fall, automatic belay devices place more force on the anchors so are better suited for sports/indoor climbing. Most only work with thick single ropes, and they are not as versatile as other devices.
An example of traditional belay is the Body Belay or the Hip Belay, where the rope is wrapped around the body to provide enough friction to catch a climber. This is often used in Alpine climbing where efficiency is important.
Rappel devices (descenders)
These devices are friction brakes which are designed for descending ropes. Many belay devices can be used as descenders, but there are descenders that are not practical for belaying, since it is too difficult to feed rope through them, or because they do not provide sufficient friction to hold a hard fall.
Sometimes called “figure of eight” or just “eight”, this device is most commonly used as a descender, but may also be used as a belay device in the absence of more appropriate equipment.
It is an aluminum or steel “8” shaped device, but comes in several varieties. Its main advantage is efficient heat dissipation. A square eight, used in rescue applications, is better for rappelling than the traditional 8.
Figure eights allow fast but controlled descent on a rope. They are easy to set up and are effective in dissipating the heat caused by friction but can have a tendency to cause a rope to twist. Holding the brake hand off to the side twists the rope, whereas holding the brake hand straight down, parallel to the body, allows a controlled descent without twisting the rope. An 8 descender can wear a rope more quickly than a tube style belay/rappel device because of the many bends it puts into the rope. Many sport climbers also avoid them because of the extra bulk a Figure 8 puts on the climbing rack. However, many ice climbers prefer to use the 8, because it is much easier to thread with stiff or frozen rope.
A rescue eight is a variation of a figure eight, with “ears” or “wings” which prevent the rope from “locking up” or creating a larks head or girth hitch, thus stranding the rappeller on the rope. Rescue eights are frequently made of steel, rather than aluminum.
The Petzl Pirana is a slight variation to the traditional Figure 8 rappel device. The Pirana consists of a single loop of metal with double prongs jutting out of the bottom. Designed primarily for canyoneering, the Pirana allows for a variety of friction modes and, therefore, lowering speeds. The Pirana supports three different braking positions, each supplying a different amount of friction, thereby changing the lowering speed. In contrast to the Figure 8, the Pirana can be loaded or disconnected from the rope without having to be removed from the carabiner.
For comfort, the Pirana can be extended away from the climber with nylon webbing or with a number of locking carabiners.
This consists of a ‘U’ shaped frame, attached to the rappeller’s harness, into which snap multiple bars that pivot from the other side of the frame. The rope is woven through as many of the bars as are required to provide sufficient friction. This arrangement allows for variations in rope diameter and condition, as well as controlled rate of descent. Racks are seldom used in sport climbing. Cavers often use racks on long rappels because friction can be adjusted by adding or removing bars.
Ascenders are mechanical devices for ascending on a rope. They are also called Jumars, after a popular brand.
Jumars perform the same functionality as friction knots but less effort is needed to use them. A Jumar employs a cam which allows the device to slide freely in one direction but tightly grip the rope when pulled on in the opposite direction. To prevent a jumar from accidentally coming off the rope, a locking carabiner is used. The Jumar is first attached to the climber’s harness by a piece of webbing or sling, and then the Jumar is clipped onto the rope and locked. Two ascenders are normally used to climb a fixed rope. For climbing a fixed rope attached to snow anchors on a steep slope, only one Jumar is used as the other hand is used for holding the ice axe.
Another type of ascender allows rope to feed in either direction, slowly, but locks up when pulled quickly. Such self-locking devices allow people to protect solo climbs because the amount of rope is automatically adjusted.
A sling or runner is an item of climbing equipment consisting of a tied or sewn loop of webbing that can be wrapped around sections of rock, hitched (tied) to other pieces of equipment or even tied directly to a tensioned line using a prusik knot, for anchor extension (to reduce rope drag and for other purposes), equalisation, or climbing the rope.
A daisy chain is a strap, several feet long and typically constructed from one-inch tubular nylon webbing of the same type used in lengthening straps between anchor-points and the main rope. The webbing is bar tacked at roughly two-inch intervals (or, in the past, tied) to create a length of small loops for attachment. Unlike the use of similar devices in backpacking, daisy chains in technical rock climbing are expected to be of sufficient strength to be “load bearing,”. Daisy chain pockets however are not rated to full strength, and can only take static loads.
When clipped in, daisy chains should not be shortened by clipping in another pocket to the same carabiner. Failure of the pocket stitching results in the daisy chain disconnecting from the anchor, with potentially fatal consequences. If shortening the daisy chain when clipped in, in order to eliminate dangerous slack, a second carabiner should be used to connect to the anchor.
Though daisy chains are sometimes used by free climbers as a type of sling (a quick attachment used from harness directly to a belay anchor), and for ad hoc purposes similar to those of the backpacker, the canonical use for a daisy chain is in aid climbing, wherein the leader will typically attach one end to the harness, and the other to the top-most anchor placement (by carabiner or fifi hook), particularly after having ascended in étriers as high as possible. This allows the leader to hang from the daisy chain while preparing the next anchor placement. The closely spaced loops allow fine-tuning the length from harness to anchor, thereby allowing the best possible reach for the next placement.
Daisy chains should not be confused with étriers, also known as aiders, which are short ladders made in the same way, but with larger loops, also used in aid climbing, nor with load-limiting devices often known as screamers (from their first trade name) designed to simulate a dynamic belay.
Protection devices, collectively known as rock protection or pro, provide the means to place temporary anchor points on the rock. These devices may be categorized as passive (e.g., nuts) or active (e.g., SLCDs). Passive protection acts “merely” as a choke when pulled on, and constrictions in the rock prevent it from pulling out. Active protection transforms a pull on the device into an outward pressure on the rock that helps the device set more firmly. The type of protection that is most appropriate varies depending on the nature of the rock.
Nuts are manufactured in many different varieties. In their simplest form, they are just a small block of metal attached to a loop of cord or wire. They are used by simply wedging them into narrowing cracks in the rock, then giving them a tug to set them. Nuts are sometimes referred to by the slang term, wires.
Hexes are the oldest form of active protection. They consist of a hollow eccentric hexagonal prism with tapered ends, usually threaded with cord or webbing. They are frequently placed as a passive chock, but are more commonly placed in active camming positions. In the standard active placement, a fall causes the hex to twist in its placement exerting sideways force on the rock in which it is placed. They are manufactured by several firms, with a range of sizes varying from about 10mm thick to 100mm wide. Sides may be straight or curved.
Typical nuts and a nut tool
Black Diamond Hexcentrics
Spring-loaded camming devices
These consist of three or four cams mounted on a common axle or two adjacent axles, in such a way that pulling on the shaft connected to the axle forces the cams to spread further apart. The SLCD is used like a syringe, by pulling the cams via a “trigger” (a small handle) which forces them closer, inserting it into a crack or pocket in the rock, and then releasing the trigger. The springs make the cams expand and grip the rock face securely. A climbing rope may then be attached to the end of the stem via a sling and carabiner. SLCDs are typically designed to maintain a constant camming angle with the rock to ensure that the normal force provided by the cam lobes against the rock face will supply enough friction to hold a cam in equilibrium with the rock.
A Tricam is a device that can be used as either active or passive protection. It consists of a shaped aluminium block attached to a length of tape (webbing). The block is shaped so that pulling on the tape makes it cam against the crack, gripping the rock tighter. Careful placement is necessary so that the “cam” does not loosen when not loaded. It is generally not as easy to place or remove as a SLCD but is much cheaper and lighter, and often is the only thing that will work in situations like quarry drill-holes and limestone pockets. The smaller sizes can work well in old piton scars, and can also be used passively as nuts.
Various items of equipment are employed during climbing-specific training.
A small device that can help in developing the antagonist muscles to those used while gripping with the hand. Use of such a device can prevent the ligament injuries that are frequently experienced by climbers.
A wooden or resin apparatus chiefly used for improving grip strength and practicing grip techniques. They generally consist of a variety of different-sized pockets and ridges that one may hang from, or upon which pull-ups can be performed. These pockets and ridges can range from large jug holds, to two-finger crimps. As well as exercising the arm, fingerboards can greatly improve finger strength, thus the name. When used effectively they can facilitate huge gains in forearm strength and lock off strength, mostly in the flexor digitorum profundus and flexor digitorum superficialis muscles of the fore arms. They are also an apparatus with the capability to injure the user, usually in the A1-4 pulleys or along sections of flexor carpi sheath linking the different FDS or FDP sections in the forearm.
Fingerboards are usually mounted above a doorway, or anywhere that allows the user’s body to hang freely, one of the best available attachment areas is to roof beams. They are also called hangboards.
A series of horizontal rungs attached to an overhanging surface that may be climbed up and down without the aid of the feet. When used properly, campus boards can improve finger strength and so-called “contact strength”.
A bachar ladder is made by stringing large diameter PVC piping on webbing and is climbed without using the feet. It can help improve overall upper body strength as well as core strength.
In the early days of climbing, many would have considered specialised clothing to be cheating. In fact, the first climbers considered an untucked shirt or unbuttoned sport jacket a sign of weakness. Several climbers even chose to climb barefoot, an act that modern climbers would find amazing. In the 1980s and early 1990s, the trend was to wear tight, brightly coloured clothes often made from Spandex. The trend, now, is to wear looser-fitting clothing. Trousers can be tailored to prevent them from restricting movement by adding features such as articulated knee joints and diamond crotch.
The climbing helmet is a piece of safety equipment that primarily protects the skull against falling debris (such as rocks or dropped pieces of protection) and impact forces during a fall. For example, if a lead climber allows the rope to wrap behind an ankle, a fall can flip the climber over and consequently impact the back of the head. Furthermore, any effects of pendulum from a fall that have not been compensated for by the belayer may also result in head injury to the climber. The risk of head injury to a falling climber can be further significantly mitigated by falling correctly.
Climbers may decide whether to wear a helmet based on a number of factors such as the type of climb being attempted, concerns about weight, reductions in agility, added encumbrances, or simple vanity. Additionally, there is less incentive to wear a helmet in artificial climbing environments like indoor climbing walls (where routes and holds are regularly maintained) than on natural multi-pitch routes or ice climbing routes (where falling rocks and/or ice are likely).
Specifically designed foot wear is usually worn for climbing. To increase the grip of the foot on a climbing wall or rock face due to friction, the shoe is soled with a vulcanized rubber layer. Usually, shoes are only a few millimetres thick and fit very snugly around the foot. Stiffer shoes are used for “edging”, more compliant ones for “smearing”. Some have foam padding on the heel to make descents and rappels more comfortable. Climbing shoes can be re-soled which decreases the frequency that shoes need to be replaced.
A belay glove is a glove constructed from either leather or a synthetic substitute, is used to protect the hands when belaying, and is especially useful if using a classic or body belay. They are also very useful for controlling the belay with single, lead ropes that are 9.5mm or smaller.Ultimately, belay gloves can lessen the possibility of rope burn and the subsequent involuntary release of the rope.
Medical tape is useful to both prevent and repair minor injuries. For example, tape is often used to fix flappers. Many climbers use tape to bind fingers or wrists to prevent recurring tendon problems. Tape is also highly desirable for protecting hands on climbing routes that consist mostly of repeated hand jamming.
“Tape” can also refer to nylon webbing.
A haul bag refers to a large, tough, and often unwieldy bag into which supplies and climbing equipment can be thrown. A rucksack or day pack often has a webbing, haul loop on the top edge.
Haul bags are often affectionately known as “pigs” due to their unwieldy nature.
A gear sling is usually used by trad (traditional), or big wall climbers when they have too much gear to fit onto the gear loops of their harnesses. The simplest forms are homemade slings of webbing; more elaborate forms are padded.
Chalk is used by nearly all climbers to absorb problematic moisture, often sweat, on the hands. Typically, chalk is stored as a loose powder in a special chalk bag designed to prevent spillage, most often closed with a drawstring. This chalk bag is then hung by a carabiner from the climbing harness or from a simple belt worn around the climber’s waist . This allows the climber to re-chalk during the climb with minimal interruption or effort. To prevent excess chalking (which can actually decrease friction), some climbers will store their chalk in a chalk ball, which is then kept in the chalk bag. A chalk ball is a very fine, mesh sack that allows chalk release with minimum leakage when squeezed so that the climber can control the amount of chalk on the hands.
Chalk is most frequently white, and the repeated use of holds by freshly-chalked hands leads to chalky build-up. While this isn’t a concern in an indoor gym setting, white chalk build-up on the natural rock of outdoor climbs is considered to be an eyesore at best, and many consider it a legitimate environmental/conservation concern. In the United States, the Bureau of Land Management advocates the use of chalk that matches the color of the native rock.Several popular climbing areas, like Arches National Park have banned white chalk, instead allowing the use of rock-colored chalk. Garden of the Gods has gone further, banning the use of calcium carbonate (the most common chalk) outright, requiring the use of a rock-colored substitute. A handful of companies make colored chalk or a chalk substitute designed to comply with these environmental conservation measures.