SEOBEAN Mens Low Rise Sexy Swimwear Boxer Brief Trunks 2209 (M(28-30")) 82% Nylon,18% Polyurethane Imported Hand wash ONLY,slightly,cold water The size for all swimwear products are asian size. Please pay a attention before you make order. If you shopping the swimwear from U.S.A or EU brands,should be choice one size up.