Hoven Hammer Sunglasses can almost be said to take a hammer right to the frame - but don't quote me on that, nor should you try it. Hoven Hammer shades have 100% UV Protection, impact resistant polycarbonate lenses and a grilamid injection frame, complete with stainless steel hinges for durability. Solid as a hammer head, Hoven Hammer Sunglasses are the way to go for any situation.