The aqua sphere k180 goggles with tinted lens have a micro gasket that reduces drag and enhances performance making the goggles perfect for racing they are also ideally suited for open water swim training due to a 180 degree range of vision and tented curved lenses that help reduce the water resistance and feature 100 uvauvb protection properties the inner surfaces of the lenses have an anti fog coating to ensure a fog free swimming whereas 3 interchangeable nose bridges combined with an