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. The lens is CAT 3 with a medium tint, suitable for bright & sunny conditions with a mirror coating to help protect against glare. Features Category 3 Mirrored coating Over the Glasses compatible Panoramic lens shape Double-layer lens 100% Polycarbonate One-size-fits-all