XL447MIXThe arms on these cool sunglasses are unique and make the shades really stand out. Made by X Loop for men, the sweeping arms have a look and feel of their own. The frame is made of plastic, made to be durable, yet lightweight and comfortable. The arms start thick, then taper sharply around the curve of the ear. The X Loop logo is seen on the side in silver and black. The lenses are rounded rectangles with a dark finish that blocks out the sun.