The G1 Anti-Fog lens was designed specifically for your Siroko G1 ski goggles. With a cylindrical design to get the best peripheral vision, its yellow tint increases and improves visual contrast. It’s the perfect accessory for your training sessions, competitions or routes at night, 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 75-80% VLT (visible light transmission).