The Navigator Adult Scuba Series Mask is your ticket to an unobstructed, clear view of underwater life. Whether you are a scuba diver or just want to see what lies below the surface of your backyard pool, this mask is perfect for you. The Navigator Adult Scuba Series Mask features a single window with tempered glass lens, meaning this lens is designed with increased strength for safety. This mask also has several other extras for your comfort, including a full nose pocket, a double-edge face skirt to prevent leaks, and an ultra-wide split head strap. The Navigator Adult Scuba Series Mask is premium quality at an incredible ToySplash price!