The aqua sphere k180 plus swimming goggles are a great fitting pair of goggles that have a curved mirrored lens and allow 180 degree panoramic vision the anatomic lens shape makes the googles more streamlined and the very soft 100 softeril micro gasket has a leak resistant seal which ensures a comfortable and water tight fit the lenses provide 100 uva and uvb protection so they can be used for outdoor swimming and the easy adjust head strap and the 3 interchangeable nose bridges make su