Bikini also occasionally refers to a type of tight-fitting men's swim wear. This type of swimwear includes any brand of racing swim wear especially those worn in competitive swimming, water polo, open water swimming, lifesaving and diving competitions. The popularity of the Australian Speedo (established 1928) brand racing swimsuit has led to the use of its name to refer to any racing or swim brief regardless of the manufacturer. The swimwear is made of fast-drying, form-fitting nylon and spandex (Lycra), polyester or other materials and are cut similar to underwear briefs.
Synonyms for male bikinis include Speedo, Speedos, Swim brief, Swimsuit, Competition brief, Togs, Bathers, Racing bathers, Posing briefs, Racing brief, Banana hammock, Budgie smugglers, Cossie, Swimmers, Swimming costume, Bathing costume, Bathing suit, Swimming trunks, Trunks, Grape smugglers, Sluggos