Prizm technology excels in bright conditions and improves the colour and contrast of your vision to help you see in more detail. A durable O-Matter frame ensures durability while the Unobtainium non-slip nosepads secure the fit even in wet conditions. Prizm Lens - enhanced colour and contrast for full-detailed vision Classic design provides a versatile look for everyone Frame: Aluminium brow with durable and comfortable O-Matter lower half Non-slip Unobtainium nosepads perform even when wet Frame colour: Matt Black/Grey Lens colour: Grey Light transmission: 17% Light conditions: Bright light