You like to play hard and you can go all day--shouldn't your sunglasses have the same endurance? The Tifosi Duro Interchangeable Sunglasses work as hard as you do, offering your eyes 100% UV protection for all your full days in the full-on sunshine. The polycarbonate lens is shatterproof and scratch-resistant, and the interchangeable feature offers quick, easy lens removal and installation. The lightweight, Grilamid TR-90 high-impact frame is durable enough to resist chemical and UV damage. The adjustable nose and ear pads provide a comfortable fit while preventing slippage, helping these sunglasses to stay in place. Best of all, the included bag and case give your sunglasses a place to rest, because even the most hearty sunglasses need a break every now and then.