Emblem Eyewear - Premium US Aviator USA American Flag Sunglasses United States Stars Heart Shades HIGH QUALITY FRAME: Metal Heart Sunglasses are manufactured with high quality plastic frames and polycarbonate novelty lenses. Both durable and strong, these sunglasses will withstand wear and tear from daily use. Heart Shape Sunglasses are the best selling retro sunglasses style in the worldthe most necessary and simple fashion accessory. Lightweight and comfortable, these are great sunglasses for driving and all outdoor activities. These sunglasses are made with a metal frame POLYCARBONATE LENS SUNGLASSES: Made with similar materials as aircraft windshields, these polycarbonate lenses are essentially indestructible. Polycarbonate is lightweight, scratch resistant and offers a higher level of optical clarity. More resistant to impact than optical glass, these sunglasses are strong, distortion-free and safe to wear for any level of intensity. lens UV400 PROTECTION: Non Polarized lenses, used in most sunglasses, block 99% - 100% of the suns radiationboth UVA and UVB rays. Some sunglasses, however, have been optimized to prevent even more exposure. Referred to as UV 400, these lenses are capable of blocking light rays as small as 400 nanometers. In any case, both options are sufficient in protecting eyes from harmful UV radiation. Lens width: 57mm Nose Bridge: 19mm Lens Height: 50mm Total Width: 139mm Only from Emblem Eyewear will you receive a 100% Satisfaction Guarantee, authentic Emblem Eyewear products and unrivaled Customer Care! USA Shipper USA Company-Fast FREE Shipping! Heart Shape Sunglasses | Patriotic Sunglasses 100% UV Protection