Go stereo: Savor Big FDL Stereo is a quality lens for our Savor Big goggles, containing FDL and Stereo Lens Technology, with a yellow mirror perfect in sun and cloud.The Atomic Savor Big FDL Stereo lens is compatible with our Savor Big goggles, and is designed to be super easy to switch when conditions change. The cylindrical lens has a pink base with yellow mirror that’s perfect for sunny to partly cloudy conditions, while the lens itself brings you Stereo Lens Technology and Fusion Double Lens (FDL) technology. This gives 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.Features:- Cylindrical Fusion Double Lens (FDL)- Stereo Lens Technology- 8x Anti-fog Inner Lens (AC)- Supreme Anti-scratch Outer Lens (PC)- Hydrophobic Lens CoatingCylindrical fusion double lens:- With the cylindrical double-lens the field of vision gets larger by 15%Spherical fusion double lens:- Spherical double-lenses have a 20% larger field of vision