A wetsuit is a garment, usually made of frothy neoprene, worn by surfers, divers, windsurfers, canoes, and others involved in water sports and other activities on or on water, providing insulation thermal, abrasion resistance and buoyancy. The insulating properties depend on the gas bubbles inside the material, which reduces its ability to heat. Bubbles also give wetsuit low density, providing buoyancy in water.
Hugh Bradner, a physicist from the University of California, Berkeley discovered modern wetsuits in 1952. Wetsuits were available in the mid-1950s and evolved as the relatively fragile foamed neoprene that was first supported, and then flanked, with thin sheets of material which is harder like nylon or newer Lycra/Spandex. Improvements to the workings of wetsuit are done by gluing, gluing and silencing, helping the shirt remain water-resistant and reducing flushing, the replacement of trapped water between suit and body with cold water from the outside. Further enhancements to the seals on the neck, wrists, ankles and zippers result in a suit known as "semi-arid".
Different types of wetsuit are made for different uses and for different temperatures. Clothes range from thin (2 mm or less) "shortie", covering only the torso, to a full 8 mm semi-dry, usually equipped with neoprene shoes, gloves and hoods.
The difference between wetsuit and dry clothes is that wetsuits allow water to enter suits, while dry clothing is designed to prevent water from entering, thus keeping the underwear dry and maintaining the effectiveness of their isolation. Wetsuits can provide adequate protection in warm waters to cool enough. Dry settings are usually more expensive and more complicated to use but can be used where protection from low temperatures or contaminated water is required.
Video Wetsuit
Usage
Wetsuits are used for thermal insulation for activities where the user is likely to be immersed in water, or often doused with heavy sprays, often approaching from near horizontal directions, where normal wet-weather clothing is unlikely to keep water out. Activities include under water diving, sailing, marine rescue operations, surfing, rafting, kayaking boiling water and in some circumstances, swimming resistance.
In open water swimming events, the use of wetsuits is highly controversial, as some participants claim that wet suits are worn for competitive advantage and not just for warmth.
Unlike triathlons, which allow swimmers to wear underwear when the water is below a certain temperature (standard 78 ° F (26 ° C) on the surface or up to 84 ° F (29 ° C) for unofficial events. most open water swimming races do not permit the use of wetsuits (usually defined as anything covering the body above the waist or below the knee), or wearing a swimsuit in a separate category and/or making it unqualified for a race award. It varies according to place and time of the year, where the water temperature is substantially below convenient.
Maps Wetsuit
Isolation
Still water (without currents or convection) absorbs heat from the body by pure thermal diffusion, approximately 20 to 25 times more efficient than air. Water has a thermal conductivity of 0.58 Wm -1 K -1 while still air has a thermal conductivity of 0,024 Wm -1 K -1 , so unprotected individuals can suffer from hypothermia even in warm water on a warm day. Clothes are made of closed cells, neoprene foams, synthetic rubbers that contain tiny bubbles of nitrogen gas when made for use as wetsuit material (neoprene can also be produced without foaming for many other applications where insulating qualities are not important). Nitrogen, like most gases, has very low thermal conductivity compared to water or solids, and the small and closed gas bubbles minimize heat transport through the gas by convection in the same way as fabric or protective fur by reducing convection. closed air space. The result is a gas filled cavity forcing heat to transfer largely by conduction, and partially through trapped gas bubbles, thereby greatly reducing heat transfer from the body (or from a warm water layer trapped between body and wetsuit) to cold water around the wetsuit.
Uncompressed foam neoprene has a typical thermal conductivity in the area of ​​0.054 Wm -1 K -1 , which generates about twice the heat lost from the still air, or one-tenth the loss water. However, at a depth of 15 meters (50 ft) water, the neoprene thickness will be halved and its conductivity will increase by 50%, allowing heat to triple the surface.
Wetsuits should have a comfortable fit to work efficiently when immersed; too loosely matched, especially in openings (wrists, ankles, neck and overlap) will allow cold water from outside to enter continuously. The flexible seal of the suit helps to prevent heat dissipated in this way.
Neoprene foaming is very mild, helping swimmers to stay afloat, and for this reason divers need to carry extra weight based on their setting volume to achieve a neutral buoyancy near the surface. However, the lawsuit loses buoyancy and thermal protection because the bubbles in neoprene are compressed at depth and this can be corrected by inflation of floating compensator.
Semi-dry settings
Semi-dried suit is an effective diving suit with a quite effective seal on the wrist, neck, ankle and zipper. The seal limits the amount of water that enters and leaves the jacket. The wearer gets wet with a semi-dry suit but the incoming water immediately warms up and does not leave the suit easily, so the wearer stays warm. The trapped water layer does not add significantly to the ability to isolate the clothes. The rest of the water circulation passing through the seal still causes heat loss. Semi-dried suit is cheaper and simpler than dry clothes. They are usually made of thick Neoprene, which provides good thermal protection at shallow depths, but loses buoyancy and thermal protection as a gas bubble in a Neoprene compress at depth. Semi-dried settings can come in a variety of configurations including one whole body suit or two piece, made of separate 'johns' and 'jacket' apart. The zipper is generally on the shoulder at the back, but other settings have been used. Semi-dry settings usually do not include boots, so a pair of separate wetsuit shoes are worn. They are most suitable for use where water temperatures are between 10 and 20 ° C (50 ° and 68 ° F).
Hot settings
Electrically heated underarm suits are also available on the market. This jack has a special heating panel integrated on the back of the wetsuit. The power for heating comes from batteries that are also integrated into the wetsuit. Even more versatile is a heated neoprene vest that works the same as a heated sweater but can be worn under any type of wetsuit.
Wetsuits that are heated by the flow of hot water supplied from the surface are standard equipment for commercial diving in cold water, especially where heat losses from divers are increased by using helium respiratory gas. The hot water suits are a loose fit because there is a constant supply of hot water piped into the suit that must be escaped to allow even flow distribution. Flushing with cold water is prevented by constant flow of heating water.
History
Origins
In 1952, UC Berkeley and the next UC San Diego SIO physicist Hugh Bradner, who is considered to be the original inventor and "the father of modern wetsuit," has an insight that a thin layer of trapped water can be tolerated between the fabric of suits and skin, provided the insulation is present in the fabric in the form of a trapped bubble. In this case, the water will quickly reach the skin temperature and the air inside the fabric will continue to act as thermal insulation to keep it that way. In the popular mind, the water layer between the skin and the suit has been credited with providing insulation. But as noted in his letter, Dr. Bradner clearly understood that the clothes did not need to be wet because it was not water that provided insulation but gas in the suit cloth. He originally sent his idea to Lauriston C. "Larry" Marshall. Marshall was involved in the US Navy/National Research Council Panel on Underwater Swimmers. However, Willard Bascom, an engineer at Scripps Institution of Oceanography in La Jolla, California, suggested neoprene as a viable material for Bradner.
However, Bradner and Bascom were not too keen on profiting from their designs and did not successfully market the version to the public. They tried to patent their wetsuit neoprene designs, but their apps were rejected because their designs were considered too similar to flying clothes. The US Navy also rejected Bradner and Bascom's offer to supply swimmers and criminals with new wetsuits because of concerns that the gases in the clothing neoprene component might make it easier for naval divers to be detected by underwater sonar. The first written documentation of Bradner's discovery was in a letter to Marshall, dated June 21, 1951.
Jack O'Neill began using the closed-cell neoprene foam shown to him by his bodysurfing friend, Harry Hind, who knew it as an insulating material in his laboratory. After experimenting with materials and finding them superior to other insulating foams, O'Neill founded a successful wetsuit manufacturing company named O'Neill in a garage in 1952, then moved to Santa Cruz, California in 1959 with the motto "Always Summer Inside". Bob and Bill Meistrell, from Manhattan Beach, California, also began experimenting with neoprene around 1953. They started a company that was later named Body Glove.
Neoprene is not the only material used in early wetsuits, especially in Europe. PÃÆ'ªche-Sport Suit made in France and British-made Siebe Gorman Swimsuit are both made of sponge rubber. The Heinke Dolphin Suit in the same period, also made in England, comes in a male version of green and white women, both made of natural rubber lined with stockinet.
Design development settings
Initially, the wetsuits were made only with crude neoprene foam rubber sheets that did not have any supporting material. This type of setting needs to be extra careful when pulling it because the raw foam rubber is itself brittle and sticky on the bare skin. Stretching and withdrawal are too easy to cause these clothes to tear in half. This is somewhat rectified by dampening the jacket and body of the diver with the talc to help the rubber slide easier.
The support material first arrives in the form of nylon sheets applied to one side of the neoprene. This allows a swimmer to wear the suit easily because the hard nylon takes most of the pressure drawn on its suit, but it still has a black rubber sheet exposed on the outside and the nylon is very stiff and rigid, limiting flexibility.. Small strips that are reversed with rubber on the skin can help provide a sealing surface to keep water around the neck, wrists, and ankles.
In the early 1960s, the British Dunlop Sports Company issued a yellow Aquafort wetsuit neoprene, whose high visibility was designed to improve the safety of divers. However, the line was stopped after a while and the wetsuits returned to their black uniformity. The colorful diving outfits seen today first arrived in the 1970s when a double-supported neoprene was developed. Now the foam rubber is sandwiched between two protective outer layers, which greatly increases the tear resistance of the material. The external layer also means that colors, logos, and decorative patterns can be made with panels and strips sewn in various shapes. This growth from thick black rubber to full color skyrocketed in the 1980s with brilliant fluorescent colors common to many garments.
Improvements in assembly of clothes
The first outfit uses traditional sewing methods to simply cover two pieces of rubber and sew together. In this rubber wetsuit does not work well for a number of reasons, the main one is that it punctures directly through both layers of foam for the yarn opening the channel for water to flow in and out of the suit. The second problem is that the foam stretch tends to enlarge the pinhole when the shirt is worn. This means wetsuit can be very cold along the seams of a suit. And although the sewn end holds both pieces, it can also act as a perforated tear edge, making it easier to tear the stitches while wearing them and releasing them.
When nylon-backed neoprene appears, the needle problem that weakens the foam has been solved, but the pinhole is still leaking along the junction.
Seam taping
To solve all these initial sewing problems, the heading recording is developed. The tape is a strong nylon fabric with a very thin but solid waterproof rubber backing. The tape is applied throughout the stitch and is tied either to a chemical solvent or to hot rolling heat to melt the tape into the neoprene.
With this technology, the clothes can be sewn and then attached, and the tape will cover the sewing hole and give some extra strength to prevent ripping through the pinhole.
When the colorful multi-colored designer clothing began to appear, the recording was moved mainly to the inside of the suit because the ribbon was usually very wide, jagged, black and ugly, and hidden inside a suit and not visible.
Many 1960s and 1970s underclothes were black with visible yellow layers. The yellow color makes the divers more visible in the water with dark visibility. To avoid this problem, the O'Neill assemblers developed a stitching membrane that incorporates a thin nylon coating with a polyester hemming band. Applied above interior glued & amp; Sew stitching, then anneal tied to a hand-held teflon heater produces seams that are sealed safely and much more forcefully.
Layer gluing
Another alternative to sewing is to stick the ends of the suit together. This creates smooth and flat surfaces that do not need to be glued together, but unfortunately the raw foam attached to the foam is not a strong bond and is still vulnerable to tearing.
Most early wetsuits are made entirely by hand, which can cause size errors in cutting foam sheets. If the edges are not aligned properly or the gluing is not done properly, there may still be water leaks along the seam.
Initially suitable can be found as sewn only, just glued, pasted only, then also stitched and taped, or glued and taped, or maybe all three.
Blindstitch Revolution
Some time after nylon-supported neoprene appeared, the method of blind seams was developed. A blindstitch sewing machine uses a curved needle, which does not go all the way through neoprene but only a shallow dips behind fabric backing, across the glue line, and pops off the surface on the same side of the neoprene. This is similar to the overlock stitches used for teeshirts and other clothing made of knitted fabrics.
The curved needle allows the woven fabric to be sewn together without punching the hole completely through the neoprene, and thereby eliminating the water leak hole along the lining. Blindstitch seam layers are also lying flat, wiping the edges of one sheet with another, allowing the material to lay more flat and closer to the skin. For these reasons, bending rapidly becomes the main method of sewing the wetsuits together, with other methods now used primarily for decorative or stylistic purposes.
Further progress in clothing design
Very elastic fabrics such as Lycra/Spandex have largely replaced raw nylon materials, because the nylon itself can not be stretched and makes the neopren very stiff. Inserting Lycra into the backing allows a large number of stretches that do not damage its settings, and allow the settings to be more fitting.
After the development of multiple supported neoprene, single supported neoprene still has a usefulness for a variety of purposes. For example, single-backed thin strips wrapped around the legs, necks, and openings of wrists from suits create seals that greatly reduce water rinsing in and out of the suit as a person's body moves. But because the strip is so narrow, it does not drag on the skin of the wearer and thus makes it easy to fit and release.
As wetsuit manufacturers continue to design suits, they discover ways to make materials more optimized and customizable. The O'Neill Animal Skin was created in 1974 by the Marketing Director, E.J. Armstrong, is one of the first designs that blends the turtle's neck on the basis of popular Sealsuit with a lightweight, flexible YKK horizontal zipper on the back shoulder similar in concept with a windproof turbine supersuit (developed by Jack O'Neill in the late 1960s). Animal Skin eventually evolved to form rubber patterns attached to the outside of neoprene sheets (E.J. Armstrong's technique was refined for Supersuit rubber logo applications printed to replace standard flat stickers). This has been done as a rubber reinforcement pad on the knee and elbow to protect the wearing of the wear, and allows the logo to be directly tied to the raw sheet rubber. In addition, a loose Animal Skin fit allows for the use of additional vests under extreme conditions.
In the early 1970s Gul Wetsuits pioneered a one-piece wetsuit called a steamer. Its name is given because the steam released from its suitability after removal allows heat and water stored inside to escape. Today one-piece wetsuits are still sometimes referred to as 'steamers'.
In recent years, manufacturers have experimented with incorporating various materials with neoprene to lend additional warmth or flexibility to their clothing. These include, but are not limited to, Spandex, and wool.
Computer-controlled precision cutting and assembly methods, such as water-jet cutting, have enabled a higher level of stitching accuracy, allowing designers to use many small individual strips of different colors while still keeping the settings not curved and the ripples of cuts that are not right and sewing. Further innovation in CAD technology (Computer Aided Design) allows precision cutting for custom-fit underwear.
Return of single supported neoprene
Because wet suits continue to evolve, their use is explored in other sports such as open water swimming and triathlons. Although neoprene is strongly supported, the surface of the fabric is relatively coarse and creates a large number of obstacles in the water, slowing the swimmer. A single supported setting has a smoother exterior surface that causes less drag. With the advancement of elastic Lycra backing and blindstitching, a single-backed neoprene suit can be created that outperformed the early versions of the 1970s. Other developments in single-backed surfwear include clothing designed for free diving and spearfishing. Single-lined Neoprene is more flexible than double lined. To achieve flexibility and low bulk for the warmth of the suit, they do not move inward, and a slightly porous neoprene surface is firmly attached to the skin and reduces the flush of the suit. The outer surface of the coated can be printed with a camouflage pattern for spearfishing.
Some triathlon submarine clothing goes further, and uses rubber molds and texture methods to strengthen the shirt surface in the forearm, to increase the pull forward and help pull the swimmer forward through the water. Very thin 1 mm neoprene is also often used in the area under the arm, to reduce strain resistance and reduce tension in swimmers as they spread their hands over their heads.
Wetsuits used for caving are often supported solely by a textured surface known as "shark skin" which is a thin layer where neopren is less developed. This makes it more abrasion resistant because it squeezes between the stones and does not tear like a cloth.
Another reason to eliminate external textile support is to reduce water retention that can improve evaporative cooling and cold winds in a suit used primarily from water.
Type
Various forms of wetsuit are available, for coverage:
- The sleeveless vest, just cover the body, provide minimal coverage. Some include a hood attached. This is not usually intended to be used alone, but as an additional layer above or below a longer wetsuit.
- The hooded tunic, covering the body and head, with short legs and short arms or sleeveless, is generally intended to be worn over the full suit, and has a zip closure. May be equipped with pockets for transporting accessories.
- The jacket covers the body and arms, with little or no coverage for the feet. Some jackets have short legs like shorts, others have legs similar to a women's swimsuit. The third style, beavertail or bodysuit, has a flap that passes through the crotch and attaches to the front with a clip, turn off or velcro fasteners. It is worn with (more) or without trousers or trousers. The jacket may include an integral hood, and may have a full or partial front zipper.
- A shorty or spring suit covers the body and has short arms and long or short legs.
- Trousers cover the lower body and legs.
- A long john , johnny , johnny suit , or john/jane farmer (depending on gender the suit is designed to) just cover the body and legs; it resembles the whole bib, hence the nickname.
- Full settings or steamer cover the torso and full arm and leg length.
Some settings are arranged in two parts; jackets and long johns can be worn separately in mild conditions or worn together to provide two layers of insulation around the torso in cold conditions. Typically, two-section cold winter clothing has 10 to 14 mm of material around the torso and 5 to 7 mm for the extremities.
Thickness
Wetsuits are available in various thicknesses depending on the conditions they desire. The thicker the suit, the warmer it will be to keep the wearer, but further restrict the movement. Because wetsuits offer significant protection from jellyfish, corals, burns, and other hazards, many divers choose to wear thin suits that provide minimal insulation (often called "bodysuit") even when the water is warm enough to comfortably discharge the clothing. The bold suit will limit mobility, and as the thickness increases, the setting becomes impractical, depending on the application. This is one of the reasons why drysuits may be better for some applications. Diving clothing is usually determined by its thickness and style. For example, a wetsuit of 5 mm thickness and a 3 mm thickness of limb will be described as "5/3". With new technology, neopren is getting more flexible. Modern 4/3 swimwear, for example, may feel flexible like 3/2 just a few years ago. Some settings have additional layers added for the main areas such as the lower back. Better flexibility can come at the expense of greater compressibility, which reduces insulation at depth, but this is only important for diving.
The final surface
Foam neoprene used for wet suit is always a closed cell, in which gas bubbles are largely unconnected to each other inside neoprene. This is necessary to prevent water absorption, and gas bubbles do most of the insulation. The foamy neoprene thick sheets inside the mold, and the surfaces that come into contact with the mold take the inverse texture from the mold surface. In the early days of wetsuits, this is often a diamond or similar pattern, but can also be slick and smooth for low drag and quick drying. The surface of the foam piece has a slightly porous layer of mat because the cutting process passes through a large number of bubbles, leaving behind the so-called open cell surface, but most of the foam remains closed cells. The open cell is the most elastic and the least torn. The shape is relatively snug and comfortable in the skin, but porosity encourages bacterial growth if not washed after use, and the surface of the foam does not glide freely to the skin.
The cut surface is usually tied to a nylon knit fabric, which provides much greater tear resistance, at the expense of some loss of flexibility. These fabrics can be tied to one or both surfaces in various combinations of weight and color, and can be thin and relatively smooth and brittle, or thicker and stronger and less elastic. The fabric lined on one side alone is more flexible than double lined.
A special type of wetsuit, with a very fine (and somewhat subtle) outer surface known as smoothskin, which is the original outer surface of the foamed neoprene block from which the sheets are cut, is used for a long time. swimming distance, competitive apnea triathlon and spearfishing bluewater. It is designed to maximize the mobility of the limb while providing warmth and buoyancy, but the surface is smooth and easily damaged. The slick surface also dries quickly and is least affected by cold winds when out of the water.
Smooth surfaces and coated fabrics can be printed to produce color patterns such as camouflage design, which can provide spearfishermen and combat divers profits.
Closure
Zippers are often used for closure or to provide a fitting in the wrist and ankle, but they also provide a leak point for water. The jacket may have a full front or partial zipper, or none at all. The full body suit may have a vertical rear zipper, a cross-shoulder zipper or a vertical front zipper. Each of these settings has several advantages and disadvantages:
- The front zipper is easy to operate, but the suit may be difficult to remove from the shoulder unaided, and the zipper is uncomfortable as it lies on the surfboard. It is relatively inflexible and is placed above the body part where much flexibility is desired. The top cover will leak to some extent. The upper end of the zipper can be easily opened for comfort when the wearer warms up, but the zipper can also squeeze into the throat, which can be uncomfortable.
- The zipper cross shoulder can be made relatively impermeable because it has no free end, and is therefore used in semi-arid clothing. Difficult to operate for the wearer and relatively very stressed on the shoulder due to arm movement. Zips are also relatively susceptible to damage from diving harness.
- The cross chest zips have an advantage similar to the cross shoulder, but are easy to reach.
- The vertical rear zipper is probably the most common setting as it can be operated with a strap. They are relatively comfortable for most applications, the suit is easily removed, and they place the zipper directly over the spine, which, though flexible in bending, does not change much in length. The top cover will leak to some extent.
Size and fitting
Suitable undercover underwear can cause breathing difficulties or even acute heart failure, and a loose fit allows for considerable rinsing which decreases the effectiveness of isolation, so appropriate conformity is important. Quality fit is the most important for diving as it is the thickest place to use and the greatest potential heat loss. The diving suit should touch the skin on top of as much of the body as it can be comfortably covered, both when the wearer is relaxed and while exercising. This is difficult to achieve and the detail of styles and cuts can affect the quality of the fit. The gap in which the suit does not touch the skin will vary in volume as the diver moves and this is the main cause of rinsing.
Dive clothes are made in several standard adult sizes and for children. Custom fitted suits are produced by many manufacturers to provide a better fit for people who do not have the appropriate off-the shelf suit.
Accessories
Usually the wetsuits have no cover for feet, hands or heads, and divers should wear separate neoprene boots, gloves and hoods for additional insulation and environmental protection. Other accessories for the basic suit include pockets for storing small items and equipment, and knee pads, to protect the knee area from abrasion and tearing, usually used by working divers. Settings may have abrasion protective pads in other areas depending on the application.
Veil
Using hood : in the thermal balance of the human body, heat loss overhead is at least 20% of the overall balance. Thus, for the protection of thermal divers, wearing a suitable hood, even at moderately moderate water temperatures. The veil has been reported to cause claustrophobia in a small number of users, sometimes due to poor matches. The hood does not have to be too tight around the neck. The rinsing in the neck area can be reduced by using a hood attached at the top of the suit, or with enough overlap between the hood and the top of the suit to limit the flow between the two halves. This can be achieved by tucking a circular flap at the base of the cap neck under the top of the suit before closing the zipper, or by having a high neck on the suit.
Boot
Wetsuit shoe is used for various purposes, and can be worn with or without wetsuit.
Thermal protection
In many water sports such as scuba diving, surfing, kayaking, wind surfing, sailing and even fishing, bootees can be used to keep the feet warm in the same way as wetsuit. Isolation is proportional to the thickness and thus how cold the water can be tolerated by the user; probably above or below the 5-6 mm neoprene standard. In warmer climates where the thermal quality of the bootee is not that important, a bootee with a thickness of 2-3.5 mm is common. The bootee leg may have a zipper on one side or may be tightened with a velcro strap. Where boots worn with their wetsuit usually tuck under the feet of the suit for downsizing, to help hold the zip closed, and to keep the foreign object out.
Foot protection
A bootee usually has a reinforced sole for walking. Usually, this is a thicker and tougher solid rubber compound than neoprene used for the top of the bootee but still flexible. The reinforced soles provide the wearer with protection and grip when walking across shingles, corals and other rough surfaces.
For scuba diving
For scuba diving, the sole of the boot should not be too thick so the diver can not get the fins on it. Divers wear bootees using fins with legs larger than needed with bare feet. Divers in warm water who do not wear wetsuits sometimes wear bootees so they can wear larger fins. Bootees Diving is usually intended for use with open-footed fins, held by ropes, and usually incompatible with full-foot fins. Neoprene socks can be used with full leg fins, either to prevent abrasions and abrasions, or to warmth.
To explore
For surfing, wind surfing, kite surfing and similar sports, bootees are usually worn where the weather is so cold that the surfer will lose some level of functionality in the legs. Bootee should not limit the ability of the surfer to hold the board with the toes in the desired way. Split-toe bootees allow for some improvements in this function. The coral rider is a small bootee that is just as tall as ankle and generally only 2 to 3.5mm thick. They are designed to allow surfers to break out into breaking waves on coral reefs or on rocky beaches.
For kayak
Some wetsuit shoe styles are generally used for kayaks. Short-cut boots are often used in warmer conditions where boots help provide grip and foot protection when launching and photographing. In cold conditions longer wetsuit boots can be used with dry clothes where they are worn over dry-rubber rubber socks.
Gloves
Wetsuit gloves are worn to keep the hands warm and protect the skin while working. They are available in various thicknesses. Thick gloves reduce manual dexterity and sense of bounds. Wetsuit gloves are also commonly worn with dry clothes. Some divers cut the tip of the gloves of the gloves on the fingers most often used for fine work such as operating the controls on the camera housing.
See also
- Dry settings
- Rash guard
Note
References
Source of the article : Wikipedia
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