Native Eyewear Toolah - Sport Sunglasses : Experience peak performance from Native Eyewear with the Toolah sunglasses. Co-Injected Rhyno-Tuff Air Frames are lightweight and durable. Single-bridge design. Rectangular frames best suit a round or oval face. Cam-Action hinges for easy open and close. Cushinol nose pads and Mastoid Temple Grip keep frames comfortably in place. Engraved logo at temples. Polarized, N3 lens technology reduces glare and blocks up to 4x more infrared light than other comparable lenses.