A butterfly shape to flaunt without a second thought defines these women's sunglasses by Polaroid. They protect the eyes and face on sunny days. becoming even more of a must-have when fitted with prescription lenses. Slender temples complete the look. embellished by a metal and rhinestone detail and a printed logo. Polaroid has chosen eco-polycarbonate. a material derived from renewable resources. for these glasses. which come in plain colours or ombr effects.