Native Eyewear Ashdown Polarized Sunglasses feature classic, masculine frames and large lenses with N3 technology for Uv protection, superior contrast, and impact resistance. The Rhyno-Tuff Air Frames on these Native sunglasses are extremely lightweight, yet durable enough to withstand high-velocity collisions and temperature extremes. Cushinol nose pads and temple tips ensure a secure, comfortable fit, working in tandem with the Mastoid Temple Grip design to hug the area behind your ears and keep the sunglasses right where you need them.