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The Ray-Ban 3217 Poalrized Sidestreet sunglasses are a sleek rimless frame with a gentle wrap and great style. The frame is made of stainless steel with spring hinges for durability. The lenses are Polarized Polycarbonate which blocks 100%UV (ABC,) are virtually shatterproof, and are simply a joy to look through. Polarized lenses are great for use on water or in any high glare situation. Includes a carry case.