WINDAY Men's Sexy Underwear Thong G-String Elastic Smooth Bikini Underwear Package Contents:1*Briefs Material--Lace;Ice Silk ; Material--Nylon Clearing mite antibacterial effect, good affinity to skin, breathable moisture, not out of shape Asia size M:= US S--Waist 26.5"-30" ; Asia size L: = US M--Waist 30"-32.5" ; Asia size XL: = US L--Waist 33"-37.5" ;