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 ombré effects.