The TYR Black Hawk Racing Mirror Goggles Gold/Rainbowhave been engineered for racing and swim training. They have a low profile, with a close fit for reduced drag in the water. The lenses are wide for enhanced peripheral vision and are made from tough polycarbonate to protect your eyes. They are fitted with TYR Durafit silicone gaskets for a comfortable watertight seal. There are also five interchangeable nose pieces to suit your face shape, for a customised fit.