Sleek and spare looking, these nice sunglasses by X-Loop are made for men who want to be active and protect their eyes during sports and other fun adventures. The frame is made of plastic, designed to flex and bend, but also tough and able to stand up to rough usage. The arms have a large metal joint at the temples that is strong and visually appealing. The arms have an inward curve that adds grip. The lenses are set in a semi-rimless fashion for looks and functionality.