Sports glasses need to protect your eyes and also be comfortable and lightweight so you don't notice them. These nice shades for men by X-Loop do all of that and more. The frame is made of metal and plastic, shaped to fit tightly, but also lightweight and easy to wear with a durable and rigid construction. The arms are thin with a wavy section in the middle and the X-Loop logo proudly displayed on the side. The lenses are small rectangles with a dark, protectant finish.