Lightweight O Matter frame material Oakley Twin Toric lens technology with HDO 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 aren’t really where you see them. HDO offers a truer visual image so your brain won’t have to work overtime. UV Protection: All Oakley lenses block 100% of UVA, UVB & UVC rays and harmful blue light up to 400 nm. PRIZM GREY Light Transmission: 17% Light Conditions: Bright Light Contrast: Increased Base Lens Color: Grey Measurements: Eye Size: 61 mm Bridge: 19 mm Temple Size: 123 mm Weight: 1.2 oz We’ve been toying with a mix of art and technology for some time. The idea was to create clean, authentic style for those who don’t just walk the path of life – they stomp it and leave footprints. That’s what led to Oakley Fuel Cell. Lightweight O Matter frame material Oakley Twin Toric lens technology with HDO