WINDAY Men's Boxer Underwear, Sexy Boxer Shorts Briefs Trunks Style Underpants Note:Asian size is smaller than US/EU/UK size so please check your measurements to make sure the item fits before ordering. Very soft, silk-like fabric 92% polyester 8% Spandex Asia size S:= Waist 26"-30" Asia size M:=Waist 30"-34" Asia size L: = Waist 34"-38"