These men's sunglasses by Polarspex feature a double-bridge frame to add strength and fit. The frame is made of metal and is lightweight and flexible, but also strong and durable. The arms are straight and thin and curve at the ear with added plastic earpieces for better fit. The lenses are rectangular and are polarized, offering glare elimination, excellent protection from the sun and from prying eyes. Choose from several lens color options to suit your own taste.