Large 45 mm roll-off film system for maximum view in rainy + muddy conditions Canisters pre-installed on lens for easy install and fit into XCR goggle frame Optically pure polycarbonate lens with anti-stick bump grid on outer surface + scratch resistant + anti-fog coating When installed, mud flap provides seal at top of film to deter water and mud from getting between lens and film Canister draw cord spool system designed to create a consistent and easy pull to clear view Kit includes 1 XCR roll-off lens, 1 roll-off system (pre-installed on lens), 2 rolls of film and 1 mud flap. ROLL-OFF SYSTEM XCR GOGL