Soccer Girls With The Football Ball Wearing A White Sportswear On The Lawn

On the other hand, sportswear should be loose enough so as not to restrict movement. Some sports have specific style requirements, for example the keikogi used in karate. Various physically dangerous sports require protective gear, e.g. for fencing, American football, or ice hockey.
Standardized sportswear may also function as a uniform. In team sports the opposing sides are usually identified by the colors of their clothing, while individual team members can be recognized by a back number on a shirt.
Spandex is the preferred material for form-fitting sportswear, such as used in wrestling, track & field, dance, gymnastics, speed skating, and swimming.