The Clear Vision Optics mask is one of Snorkel City®'s top sellers! The two-lens design makes this mask very low volume. The silicone skirt is comfortable and versatile, and will fit most faces. This mask comes complete with pre-ground prescription lenses professionally installed; Lenses are available in both positive and negative diopters and come in .5 diopter increments. The Clear Vision Optics mask comes to you with your prescription lenses completely installed and water-ready.
Please note: lenses with positive diopters (magnification) are gauge readers--the prescription is only on the bottom portion of the lens. This is the equivalent of reading glasses.