The aqua sphere kameleon swimming goggles have a hydrodynamic low profile design and boast curved lens technology for wide peripheral vision they are great for triathlon and open water swimming and provide quick and easy adjustment thanks to special ez adjust buckle as well as a comfortable fit due to anatomical asymmetrical softeril gasket the goggles feature scratch resistant plexisol lenses with an anti fog coating for mist free vision and protect your eyes from uva and uvb rays