Campco Humvee Adventure Gear Sunglasses Gold Frame Gray Lens. These glasses have a bayonet style. Made from high-nickel copper alloy high frequency welding and optical plating spring-loaded flexibility and polarized lenses with UV protection. These products are designed to survive the most demanding situations while still remaining simple and easy to use. Face Diameter and Thickness Lens 52mm x 44mm length 5.25''. CE approved. Specifications for Campco Humvee Adventure Gear Sunglasses: Manufacturer: Campco Application: Outdoor Age Group: Adults Gender: Unisex Frame Color: Gold Lens Color: Gray Color: Gold Polarized: Yes Frame Material: Copper/Nickel Alloy Frame Type: Wire Lens Type: MIL-PRF-31013 Quantity: 1 Package Contents: Campco Humvee Adventure Gear Sunglasses Humvee Adventure Gear HMV52BGOLD Sunglasses Adult Gray Lens MIL-PRF-31013 Gold