Canopy⢠means that you can oversize your field of vision without compromising the fit. Advanced peripherals help all consumers see more, regardless of their driving style, from racing to cruising groomers. The wide fit has been designed to work perfectly with most helmet types & sizes. Features closed frame construction integrated ventilation openings Prizm⢠Glasses Iridium® glass coating High Definition Optics® F3 Anti-fog coating three-layer, soft foam padding adjustable glasses strap with anti-slip silicone strip helmet-compatible PRIZM⢠Prizm⢠is a revolution in lens optics built on decades of color science research. Prizm ⢠lenses offer unprecedented control of light transmission which allows colors to be precisely matched to maximize contrast & improve visibility. All Oakley lenses offer HDO® Technology with the following benefits Clarity: Conventional lenses can magnify images. HDO® precision gives less distorted vision across the entire field of view. Refraction: With regular lenses, objects arenât really where you see them. HDO® offers a truer visual image so your brain wonât have to work overtime. UV Protection: All Oakley lenses block 100% of UVA, UVB & UVC rays & harmful blue light up to 400 nm.