Bolle Faze Sunglasses Stylish, casual sunglasses with sporty sensibility--great for everyday use TLB Dark Neutral-density brown lens. Provides true color definition. Ideal for high-altitude, high-glare situations. 14% light transmission Fit - Medium/Large UVA/UVB Protection - Bolle exceeds the industry standard with 100% 20.3 Poly carbonate Lenses - Sunglasses should protect you from more than just the sun. That's why our polycarbonate lenses are made from lightweight, premium-grade resin that's 20 times more impact resistant than glass-and three times lighter.