Duduma Premium Full Mirrored Aviator Sunglasses w/Flash Mirror Lens Uv400 (Silver frame/Purple mirror lens) resin frame Polycarbonate lens mirrored UV400 PROTECTION-Lenses block 99% or 100% of UVB and UVA rays.UV 400 indicates an eye protection item that has been optimized to prevent eye exposure to both UVA and UVB radiation. One of the biggest differences between UV 400 protected items as compared to other items that protect against the sun's radiation is the fact that UV 400 protected items are capable of blocking light rays as small as 400 nanometers. REVO LENS-sunglasses are made with the most high quality polycarbonate lenses, which are ultra lightweight and shatterproof. Revo technology is made with even lighter weight material and are even more unbreakable. They are impact resistant and offer perfect clarity of vision. Also, Revo lenses are scratch and impact resistant, offering 100% UV protection. HIGH QUALITY FRAME - Made with only the highest quality materials, these sunglasses were constructed using special design techniques in order to ensure durability and avoid breakage while engaging in sports and recreational activity. LIFETIME BREAKAGE WARRANTY ON FRAME &LENS-All Duduma Sunglasses is backed by a lifetime warranty. It does not matter whether you come across an unforeseen obstacle, miscalculate a turn on a trail, Whatever the reason, you can have Lifetime Breakage Warranty on Frame & Lens 30 DAY MONEY BACK GUARANTEE-100% satisfaction guaranteed. That is our promise. So, if you are not completely happy with your purchase within the first 30 days, just let us know. We will do whatever it takes to make it right