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. Native Eyewear Ashdown Polarized Sunglasses feature an interchangeable lens system, which allows you to change out the lenses as needed (lenses sold separately).