What do you want to know? That they&';re virtually unbreakable? That they have no slip grip? That wearing them will heighten your kickflip by 69% and the chances of getting your crush&';s number by 420%? I could tell you all that about the Low Bones, if I cared. Lens: HDPV Polycarbonate Look thru color: Smoke Light transmission: 12%, CAT 3 100% UVA + UVB protection No slip grip rubberized touch points 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&';s in the Box 1 Pair of Pit Vipers 1 Tie Downs(TM) Retainer Strap 1 Limpcloth(TM)