Smith Proof sunglasses are at home on the mountain, the lake or the beach. Smith optics combined easy-going wearability with superior polarized performance to create Proof sunglasses..Proofs are designed to be worn every day, all day long. Smith Proof sunglasses feature a TR90 Grilamid frame with TLT Carbonic lenses. Proof sunglasses are designed to fit a medium face. Look great, see geat with Smith Proof Sunglasses.