Mens Classic Underwear Sexy Zipper Open Crotch Y froat Briefs (Red) 100% Polyester Package: 1*Undies Size:S,M,L, (in US/UK size) Features:polyester, Simple Design, Y froat Triangle briefs, Low-rise, Ultrathin Y froat briefs, Sexy,U bulge,Zipper Open Crotch Color:White/Black/Deep Blue/Orange/Red Note: Pls check the size chart in US, and ignore the wash lable size.