The G1 Night Vision lens was designed specifically for your Siroko G1 ski goggles. With a cylindrical design to get the best peripheral vision, its tint increases and improves visual contrast. It’s the perfect accessory for your training sessions, competitions, moments with low visibility, fog, or when you need extra protection from gusts of wind or external objects. It’s a category 1 lens with 52-55% VLT (visible light transmission).We’ve optimized the design, including an anti-fog treatment and anti-scratch coating to increase the durability of the lens and minimize fogging up.