100% UV400 & POLARIZED LENS ▶ UV400 protection coating blocks 100% harmful UVA & UVB Rays. Polarized lens reduce glare reflected off of roads, bodies of water, snow, and other horizontal surfaces. ADJUSTABLE AL-MG ALLOY TEMPLE ▶ Compared with ordinary alloy materials, aluminum and magnesium are more Light and durable. Spring hinge help you to adjust temple freely to fit your head, giving you a comfortable stress-free wearing experience. STYLISH LIGHT-WEIGHT DESIGN ▶ Total weight of sunglasses is 23.5g, it is perfect for driving, fishing, tennis, cycling, golf, walking, racing, skiing, climbing or other outdoor activities enthusiasts. LIFETIME BREAKAGE WARRANTY ON FRAME & LENS ▶ All our sunglasses is backed by a lifetime warranty. It does not matter whether you come across an unforeseen obstacle. 100% RISK FREE PURCHASE ▶ Lifetime Breakage Warranty on Frame & Lens and 90 Day Money Back Guarantee.