ONEFIT Men's Polyester Underwear Bulge Enhancer Mention Ring Underwear 95%Spandex, 5%Nylon . Hand wash/ Machine wash. Waistline Size : S--28-30inch/70-76cm ; M--32-34inch/80-86cm ; L--36-38inch/90-96cm ; XL--40-42inch/100-106cm Please do not refer to Size Chart, select the size you usually wear 3cm wide belt with iron ringperfect for lingerie night, self pleasure ONEFIT faux leather underwear, make you sexy and comfortable every day