This is the ScubaPro Solo Scuba Diving Snorkeling Mask Features: Dual colored frameless single lens design delivers a panoramic field of view. Double-sealed silicone skirt offers superior fit and comfort. Low volume design increases field of view plus makes clearing easy. Non-slip strap with easy-adjust buckles let you find that perfect fit. Tempered glass lens. Available with a black or clear skirt. The Solo is a modern single lens mask that offers a panoramic, low volume field of view in the streamlined design. The crystal-clear, double-sealed silicone skirt molds to the face to create a comfortable, watertight seal. Buckles with flexible mounts on the skirt allow you to easily route the non-slip strap to achieve the perfect fit. This mask is a favorite among recreational divers.