It is has been said that if you can't find em', grind em'. We're not even sure what that means, but we do know that if you want your hotrod to run smooth and be able to pull a third gear chirp in the fast-lane of life, the master mechanics at VZ suggest adding a Sidepipe to your face's whip. -100% UV Protection-Base 6 spherical lens-Nylon grilamid frame-Polycarbonate Polarized-Stainless steel optical hinges