TOREGE Men's Sports Style Polarized Sunglasses Al-Mg Metal Frame Glasses M291 POLARIZED LENS- 100% UV400 protection coating, blocks 100% harmful UVA & UVB Rays. Restore true color, eliminate reflected light and scattered lightmake the scenery more clear and soft and protect eyes perfectly. TAC lens includes 7 layers. The 1st layer is polarization layer. The 2nd and 3rd layers are bonding layers to enable durability. The 4th and 5th layers are UV protection layers to absorb UV light. The 6th and 14th layers are shatterproof layers. LIGHTWEIGHTi AL-MG Alloy Design Is Ideal For Usage By Motorcycle And Cycling Bicycle, Driving, Running, Fishing,Racing, Skiing and Climbing, Trekking Or Other Outdoor Activities Enthusiasts.Polycarbonate lens and frames are impact, scratch resistant, durable and unbreakable. SOFT RUBBER NOSEPAD,Let Your Nose Feel Comfortalbe While Wearing Torege Sports sunglasses for Cycling Running Fishing Golf . LIFETIME BREAKAGE WARRANTY ON FRAME- Frames and lens are unbreakable for no risk purchasing. In case any broken problem happens, contact the seller of Torege without hesitation to solve the problem until satisfaction. Torege provides lifetime after sale service for all Torege products. 30 DAY MONEY BACK GUARANTEE- All Torege customers enjoy 37 Day Money Back Guarantee. Customers can return and get refunded in case the purchasing is not satisfactory for any reason. You have no risk to try.