CampCo HUMVEE HMV-57B-MATT&nbsp;Polarized Bayonette Style Military Sunglasses with Gray Lens and Matte Silver Frame, 57mm Protect your eyes from the sun's harsh rays 57-millimeter, bayonet style frame with a matte silver finish Made of high-nickel copper alloy with high frequency welding and optical plating Grey polarized lenses reduce glare for better color, clarity and detail Comes with a 1-year limited warranty