POLARIZED LENS - Specialized multilayer lens designed to filter and block over 99.96% of glare. UV 400 PROTECTION - TAC polarized lens blocks 100% harmful UVA & UVB Rays. ULTRA LIGHT-WEIGHT DESIGN - Weighs only about 24g, ensures long time comfort. Lightweight design is ideal sunglasses for cycling, driving, running, fishing, racing, skiing, climbing, trekking or other outdoor activities. ANTIOXIDANT METAL FRAME - Good quality lightweight antioxidant metal frame provides the ultimate in performance and comfort, impact, scratch resistant and durable. 100% RISK FREE PURCHASE - We respond and solve most of our customers\' problem within 12 hours. You can return or get refund if you have any problems about the products. You have no risk to try!