Impact Resistant Lenses: Polycarbonate lenses provide impact resistance for safety and durability. Lightweight Carbon Fiber Frame: Carbon fiber temples and lightweight frame for comfortable all-day wear. UV Protection: Blue mirror lenses block 100% of harmful UVA/UVB rays. Stylish Design: Large square frame with carbon fiber accents and blue mirror lenses. Adult Sunglasses: Unisex style designed for adults with a square shape and large lenses. X POWER strives to provide excellent safety eyewear for our customers. Our top priority is your safety, from unexpected flying objects to harmful sun rays afflicting your eyes. To accomplish this, all components in our eyewear, including the lens, frame, and temple, are made with high-velocity impact-resistant Z87+ rated polycarbonate materials.