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.