Left glass of the rainbow lenses for Mad Wave's STREAMLINE Racing Goggles. Choose your strength for your left eye. In addition to this glass, also choose a right-hand prescription lens and the Streamline Kit to complete the glasses. The streamline kit contains 4 nose pieces and a strap. Glasses are with optical lenses Glasses contain UV protection There is an anti-fog coating on the glasses The color of the glasses changes depending on the incidence of light.