Barsty Men's Thong G-String Sexy Mesh Men's Taste Men's Underwear MEN'S BRIEFS:Nylon Clearing mite antibacterial effect, good affinity to skin, breathable moisture, not out of shape Asias size smaller than US size Asia M/US S : Waistline(28"-30'' stretch ) Asia L/US M : Waistline(30"-33'' stretch ) Asia XL/US L :Waistline(33"-36'' stretch ) Asia XXL/US XL :Waistline(36"-40'' stretch ) Hand wash ONLY,slightly,cold water