Foster Grant Ironman Aviator Sunglasses with Spring Hinges and Eyeglass Strap Black with Smoke Lens with Silver Mirror Flash ActiVisionTM Polycarbonate lenses offer high-impact resistance,superior optical clarity and creates less distortion Spring Hinges and Metal Frame for strength, comfort and durability Premium-designed sport build frames with temple inserts and rubber nose pads 100 % UVA-UVB Protection includes eyeglass strap