The aqua sphere kayenne swimming goggles have mirrored lenses which reflect light protecting eyes and improving underwater vision enhanced by the anti fog coating the 100 uva and uvb protection makes them suitable for outdoor usage and the 4 point expanded plexisol lenses are large durable and ensure 180 vision the comfortable silicone strap the stabilising nose bridge and the one touch quick fit buckle all make for the perfect fit adjustable even when you are wearing them