Native Eyewear Kodiak Polarized Sunglasses Castor Resin Imported N3 Polarized lenses filter Blue light, minimizing haze so you get greater Clarity, color and contrast Single snap-back interchangeable lens system Co-injected rhyno-tuff air frames seamlessly incorporate our grippy, comfortable molding right into the plastic to help keep your shades in place Optimal fit for medium Profiles Cushion nose pads ensure a soft feel and custom fit, regardless of nose shape or size