This cylindrical Atomic Savor Big FDL Stereo lens is for our Savor Big goggles, and is super easy to switch when conditions change. The lens itself brings you Stereo Lens Technology and Fusion Double Lens (FDL) Technology - giving you top clarity without reflections or refractions. As the double lens is laminated together, FDL also delivers a truly epic field of vision that’s up to 20% wider, with the frame virtually invisible when your goggles are on. The multi-layered silver-black Stereo mirror over a dark smoke base works well in all conditions, but is at its best in bright sunny days - easing glare and helping your eyes see more in the terrain ahead.Key features:- Cylindrical fusion double lens (fdl)- Stereo lens technology- Anti-fog inner lens (ac)Features:- Cylindrical Fusion Double Lens (FDL)- Stereo Lens Technology- 8x Anti-fog Inner Lens (AC)- Supreme Anti-scratch Outer Lens (PC)- Hydrophobic Lens CoatingLense construction:FDL is the next-generation for double-lens construction: it uses lamination instead of connecting the lenses with an additional foam layer, which means a larger field of vision, and no refractions, reflections or fogging. All our Fusion Double Lenses are of optical class 1.Hd lens technology:HD (High Definition) technology gives crystal clear visibility in all light conditions. Crystals in the lens divide white light into its six spectral colors. The lens then enhances the sensitive ones, so you see everything in high-definition contrast and get a greater sense of depth, making these the best performing lenses in the widest range of light conditions.Classic double lens:Our classic double-lens goggles use the classic construction - this features an anti-fog inner lens (AC) and an anti-scratch outer lens (PC) connected with a foam layer.More lens features:Optical class 1:All our lenses feature class 1 optics - minimizing distortion and eye fatigue. They’re 100% UVA/B protective and comply with highimpact resistance standards(EN1836, ANSI Z80.AS/NZS 1067).8 x anti-fog inner lens (ac):The inner lens of all our FDL lenses offers up to 8x more anti-fog properties than industry standards, withstanding fogging for over 240 seconds in controlled lab tests (vs. the standard test length of 30 seconds).Hydrophobic lens coating:- A durable coating that repels moisture, grease and dirt. Water drops roll off and disperse without streaking, while fingerprints can be easily removed.Supreme anti-scratch outer lens (pc):- Our quality double lenses have a hard coating on the outer lens with excellent anti-scratch properties so you’ll always have a clear view.