Saeko S53 Blade Mirror Series Swim Goggles With Ultra Anti-Fog And UV Protection Coated Mirror lenses for all swimmers. Wide-angle panoramic view and Ultra FUSE design for comfort. Made with UltraFUSE technology for maximum all day comfort Wide View UltraAnti-FOG keeps lenses fog-free and provides clearer sight Mirrored Lenses with built in UV Protection material reflects UVA & UVB harmful rays from sunlight. Patented UltraFAST built-inside clips for quick adjustment UltraFIT presents lightweight and ergonomic shape design.