The Split Jacket features Oakley’s Switchlock Technology, which makes swapping lenses quick and easy. Oakley offers a wide variety of lenses (sold separately) for the Split Jacket in vented and non-vented styles so you can dial in your exact optical needs no matter the conditions. Lenses are made with Plutonite lens material that filters out 100 percent of UVA, UVB and UVC rays. The lightweight, yet durable O Matter frame material is formed with Three-Point Fit for a comfortable fit without bothersome pressure points. Why settle for one lens shade? Get a pair of sunglasses that allow you the freedom you want.