... , 1) Material:100% cotton 2) bottle opener on cap 100% cotton beer cap with built in embossed bottle opener,97% cotton,3%spandex washed ... ,10*10camouflage cotton twill2) Composition:98% cotton,2% spandex3) bottle opener on cap peak4) Available sizes:6+3/4,6+7/8 ... goods are in stockCertificate CE, RoHs,ASTM 100% cotton beer cap with built in embossed bottle opener