Native Eyewear Bigfork Polarized Sunglasses Castor Resin N3 polarized lenses filter blue light, minimizing haze so you get greater clarity, color and contrast Co-injected Rhyno-Tuff Air frames seemlessly incorporate our grippy, comfortable molding right into the plastic to help keep your shades in place Updated side vents are designed to keep the inside of your lenses fog free - all while fitting better than ever Optimal fit for large to extra large profiles Cushinol nose pads ensure a soft feel and custom fit, regardless of nose shape or size