The HUMVEE HMV-52B-OD Military Sunglasses feature gray lenses and olive drab frames. These glasses are a bayonet style. 52-millimeter. HUMVEE has become the backbone of U.S. forces around the world. Their 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.