Designed specifically for demanding sporting activity, this revolutionary eyewear lets athletes change lenses depending on their environment, thanks to Switchlock Technology. Switchlock lets you adapt your vision and changes lenses quickly and hassle-free. The simple switch mechanism makes the process quick and easy, and the lens is held securely in place without uneven pressures that can bend it and distort your vision. The lightweight yet durable frame is made of O Matter. This is shaped with surge ports to maintain a cooling flow of air. Interchangeable nose pads let you achieve a comfortable, customizable fit, and the earsocks are made of the same sport-optimized Unobtainium to increase grip when you sweat. Uneven pressure points are eliminated because its Three-Point Fit holds the frame comfortably in place while keeping the lens in precise optical alignment, rather than hooking over your ears. Radarlock comes in an Oakley Soft Vault case that lets you store an extra lens, and each frame comes with two lenses: one for bright days and one for low-light conditions. Features in brief:*Oakley Switchlock interchangeable lens technology for fast and easy lens changing*Durability and all-day comfort of lightweight, stress-resistant O Matter frame material*Integrated surge ports to channel airflow for the comfort of cooling*Unobtainium earsocks that increase grip when you sweat*Comfort and performance of Three-Point Fit that holds the lens in precise optical alignment*Multiple interchangeable Unobtainium nose pad options for secure, customizable fit that maximizes comfort Lenses with this frame: VR28 Black Iridium: Medium to bright light. Filters blue light to increase contrast and improve depth perception in a wide variety of conditions. Features an Iridium coating to diminish glare.