Wide, unobstructed field of vision (178°x78°). 1-ply foam for comfort. 40mm elastic strap. EN1938 certified. Lenses: Mirrored lens with anti-fog & anti-scratch treatment. NOTE: Hack can be upgraded with Polarized lens. Item Specifications: Standard tear-off film sheets. The kit includes 20pcs. film sheets and a replacement pin clip. Please consider the environment and collect torn off sheets after riding., , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,.