Poc cornea roll off systemthe cornea roll off system offers a fast and easy to use way of retaining clear vision in muddy conditions the cornea roll off system has a double lens made of optical grade pccp with anti fog and anti scratch treatment to promote vision and resistance featureseasy to use roll off system to retain clear visionoptical grade polycarbonate pc outer lenscellulose propionate cp inner lensanti scratch and anti fog treatedbuypoc protectionfrom chain reaction cycles