UV400 PROTECTION - 100% protection against UVB and UVA rays blocking any harmful ultra violet light rays beyond 400 nanometers. Category 2 Medium Tint Lens with 20% Light Transmittance.SUPERIOR FIT - Adjustable nose pads allows you to fit the glasses to your nose bridge shape while keeping the glasses snug on your face during sporting activities such as playing softball, baseball, golfing and skiing; riding motorcycles, biking, cycling bicycles, bike riding, driving, running, fishing, racing, climbing, hiking and trekking. Anti-slip materials are used for nose pads and temple tips to ensure comfort and security. FREE carrying case and microfiber cleaning cloth included. AERODYNAMIC CONSTRUCTION - Made with TR90 nylon and carbon aluminum materials, the Naga Sports Pioneer model is a step up from average plastic sports sunglasses due to it being more lightweight and flexible. Inward folding hinge design with no sharp edges minimizes injury during a fall or impact. Frame dimensions with height: 41mm; lens width: 69mm; temple arm length: 135mm; bridge width: 12mm; frame width: 138 mm. LIFETIME WARRANTY - All Naga Sports sunglasses are covered by our limited lifetime warranty and satisfaction guarantee. Contact the seller of Naga Sports directly for hassle-free replacement or returns service. CUSTOMER FIRST - 30 Day Money Back Guarantee is standard on all Naga Sports sunglasses products. Customers may return for any reason so there is no risk in trying. About Naga Sports Sunglasses When you lead an active lifestyle, you need eyewear that can keep up with you. Here at Naga Sports, we love the outdoors – whether it’s biking through rugged terrain, mountain climbing, or playing a competitive sport – We understand that the right equipment and accessories don’t just help you, they can enhance your experience. With this in mind, we craft sunglasses only with quality materials that can withstand the elements and vigorous activity, while still remaining lightweight. You can count on Naga Sports sunglasses to be the right combination of protective, adjustable and lightweight qualities that are within your budget, and available in a variety of modern shapes and designs. Safe, effective and stylish, Naga Sports is here to be your affordable supplier of sports & outdoors equipment and accessories. For your next adventure, equip yourself with Naga Sports gear to reach new heights in your active lifestyle. WARRANTY: Your Naga Sports Sunglasses include a limited lifetime manufacturer’s warranty, which covers manufacturing defects in materials or workmanship for the lifetime of the product. This does not apply to wear and tear from normal use, misuse, abuse, or unapproved modifications. To process a warranty claim, please provide your proof of purchase and order number, and contact the authorized Amazon Seller of Naga Sports products that you purchased the item from.