The XSC MX Goggle Clear Lens is a single lense with tear sheet plastic tabs that can fit both the Summit and Impact Series Goggles. The lens is made of an optical Lexan material which is durable and impact resistant and 100% UV protected. The lenses come with an anti-fog treatment and include Iridium lens coating for accurate Light Transmission. Light Transmission: 85%-95%. Good for night and Artificial Light use.