Binn Men's Lace Boxer Fashion Swim Trunks Nylon / nylon Our sizes Come with Asia Size, Suggest 1/2 Sizes Up US X-Small=China Small:Wasit:26.77"(68cm)-29.92"(76cm) US Small=China Medium: Wasit:30.31"(77cm)-32.68"(83cm) US Medium=China Large: Wasit:33.07"(84cm)-35.43"(90cm) US Large=China X-Large:Wasit:34.65"(88cm)-37.01"(94cm)