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 & changes lenses quickly & hassle-free. The simple switch mechanism makes the process quick & easy, & the lens is held securely in place without uneven pressures that can bend it & distort your vision. The lightweight yet durable frame is made from 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, & the earsocks are made from 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, & each frame comes with two lenses: one for bright days & one for low-light conditions. Features in brief:* Oakley Switchlock interchangeable lens technology for fast & easy lens changing* Durability & 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 & 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* Metal icon accents Lenses with this frame:* Black Iridium: Excellent all-purpose lens with Iridium coating to help reduce glare.*VR28 Vented: Flat to medium light. Filters blue light to increase contrast & improve depth perception in a wide variety of conditions.