- PeterrLv 61 decade agoFavorite Answer
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A Rash Guard is a type of athletic shirt made of spandex and nylon or polyester. Rash guards are used for light coverage in warm to extreme summer temperatures for several watersports including surfing, scuba diving, snorkelling, wakeboarding, body surfing, body boarding, windsurfing and kayaking.
Rash guards are most often worn in surfing when the weather is too warm for a wetsuit, and to prevent wax-based chafing from sliding on and off of the surf board. The board's wax holds sand from the beach that would rub against the surfer's torsos as they paddled out to the break. Rash guards also offer some protection from the sun and slight protection against jelly fish stings and are sometimes worn under wetsuits to prevent chafing. Some rash guards offer Ultraviolet Protection Factor to protect against the rays of the sun. A rash guard helps to prevent irritation caused by rapid impact with surface water and waves as well.
Rash guards are thought to have originated in Australia, where they are commonly referred to as "rashies" or "rashys". Variations of the rash guard have made their way into many other sports including baseball, American football, water polo, Brazillian Jiu Jitsu,Mixed Martial Arts and football.
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