The Oakley Women's Radarlock Edge Sunglasses are so light and comfy, with polycarbonate O Matter frames and a three-point fit system, that you'd forget you were wearing them. But do, because they also protect your eyeballs with Plutonite sun-fighting. impact-resisting lenses no matter the condition. That's right: quick-change those low-light lenses when the sun bursts onto the scene, or trade the glare-cutters for subtle shades. Injected polycarbonate O Matter frame is lightweight, stress-resistant, and durable, so you can rock your shades for a long time Switchlock interchangeable lens technology allows for fast, secure change-ups for every activity and condition; spare lenses included Integrated surge ports channel cooling airflow to prevent fogging Polycarbonate Plutonite lens UV protection filters out 100% of UVA, UVB, UVC and harmful blue light up to 400nm Dual-lens polaricellipsoid geometry cut lenses from a single toric shield; you don't have to pronounce it, only reap its consistent, clear-sighted benefits Optical precision and impact-resistance is at least ANSI Z87. 1 optical and basic impact standards Three-point fit holds lenses in precise optical alignment for optimal performance Unobtainium earsocks and nosepads increase grip, even when you're perspiring like a pig Metal icon accents add eye-catching style Multiple interchangeable Unobtainium nose pad options for customizable and comfortable secure fit Protective sports-specific Oakley Soft Vault case included with capacity for an extra lens