Optical swimming goggle 1,Tempered PC lens 2,Anti-Fog 3,100% Silicone soft gasket & strap 4,Various colors are avaible Cool silicone Swimming Glasses ... or as you like free bonus a pair of fine swimming earplugs Featuresthe nose-bridge and gasket are siamesed, 100% M ... anti-fog, which promise you long time clear sight when swimming. the middle of the headstrap is double and prevented slide ...