The HUMVEE HUM-R52B-GOLD is a military Sunglasses feature gray lenses and gold frame. These glasses have a bayonet style. 52-millimeter. HUMVEE has become the backbone of U.S. forces around the world. Our HUMVEE gear is modeled after equipment that is depended on in the rigors of battle. These products are designed to survive the most demanding situations while still remaining simple and easy to use. Made of high-nickel copper alloy High frequency welding and optical plating Spring-loaded flexibility Polarized lenses with UV protection CE approved 1 year limited warranty Carrying case included 52 mm x 44 mm size 52 mm diameter x 44 mm thickness lens