Hugo Boss Black Boss 0905/F/S is a Full Rim frame for Men, which is made of Metal.Most metal frames are made out of Monel. Monel has a copper and nickel base. This metal can be corrosion resistant, strong, and easily adjusted. It retains its stability and shape. This model features a Square shape, with a Double Bridge.These Sunglasses work well for people whose style is: Classic.Ideal for usage with: Fashion.Hugo Boss Black Boss 0905/F/S Sunglasses come with a cleaning cloth and protective carrying case.These sunglasses are available with a mirror coating option on certain colors. Mirror coatings are suitable for protection from intense light. A mirror coating reflects back light and reduces the amount of light passing through the lens. This makes it more comfortable for eyes in very sunny conditions.