The new Sherwood Vantage Scuba Diving Mask Features: Classic dual lens design with wide field of vision Easily adjusted quick disconnect buckle system allows simple adjustments to the mask strap with no slipping Silicone skirt has a double edge for smooth and effective sealing to the cheeks and forehead Has a large, easy to reach, one-hand nose pocket for ear equalization Wide split strap design works in concert with the double edge of the skirt for a perfect seal on the face Tempered glass lens Optional corrective lenses The new Vantage is a modern traditional design that is versatile and utilitarian. This mask fits great on most divers and has the ability to have the standard lenses replaced with prescription lenses, ranging from -1.5 to -8.0.