Polarized Sunglasses Metal Fashion Aviator Sunglasses w/Flash Mirror Lens UV400 metal frame anti-reflective lens polarized Lens width: 65 millimeters Mental technology frame,special design for men,fashion and ensure quality at the same time. 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. Lightweight design is ideal for usage by motorcycle and cycling bicycle,driving,running,fishing,racing, skiing and climbing,trekking or other outdoor activities enthusiasts. Silicone nose pads,more comfortable and no easy to slide when you do exersize or driving 30 DAY MONEY BACK GUARANTEE-100% satisfaction guaranteed.That is our promise.So,if you're 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.