This replacement lens is compatible with all current Kask visor helmets & is one-size-fits-all. It's produced from 100% Polycarbonate for strength & durability as well as providing optical clarity. The Panoramic shape ensures a wide field of view & as it's a double-layer lens it helps to reduce any fogging. This visor is a CAT 2 with a medium tint providing some protection against glare from the sun, making it best suited for average/bright light conditions. Features Category 2 Mirrored coating Over the Glasses compatible Panoramic lens shape Double-layer lens 100% Polycarbonate One-size-fits-all