The Jethawk is everything you think an aviator should be. E-spot(TM) adjustment and rubberized touchpoints provide exceptional performance and comfort. Feel the delight of luxury on the mountain, beach, or wherever the f*ck you&';re going. Lens: Polarized Polycarbonate Look Thru Color: Grey Light Transmission: 10.5%, CAT 3 100% UVA + UVB Protection E-Spot Adjustment(TM) adjustable earpiece length No-slip-grip rubberized touch points Care Instructions : DO: Clean your Pit Viper Lenses with the Limpcloth(TM) (included with every pair of Pit Vipers) and hot mouth breath, or Snake Oil Lens Cleaner (sold separately). DO NOT: Clean your Pit Viper lenses with bleach, dish soap, household chemical cleaning products, salt water, sandpaper, sweat, or other bodily fluids, mysterious or other. What in Box : 1 Pair of Pit Vipers 1 Tie Downs(TM) Retainer Strap 1 Limpcloth(TM)