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A bold look from classic Hollywood, the Roxy Atomic sunglasses protect your eyes from the sun in vintage style. Lightweight and virtually shatterproof, polycarbonate lenses are 20 times more impact resistant than glass and one-third the weight. Frames are constructed from cellulose propionate (thermoplastic), which is lightweight and hypoallergenic. Rainbow tortoise frames feature brown lenses. Black lavender frames feature gray lenses.