OX7646Thin and lightweight with a cool textured look, these shades for men by Oxigen are made for sports and outdoor activities and will hold up under extreme usage despite their fragile appearance. The frame is made of plastic, designed to be flexible, but rigid enough to hold its shape. The arms come off the temples and feature rubberized earpieces for better grip. The lenses are rounded rectangles with a dark finish to protect your eyes and offer privacy.