The Mares Jupiter Mask is a frameless single tempered safety glass lens design with a moderate internal volume. The frameless design provides a great field of vision. The silicone rubber mask skirt with a double feathered edge combines with the wide split strap for a perfect seal on large faces with an extra-large fit. Easy adjust pivoting buckles are mounted on the mask skirt. The Mares Jupiter Mask has a large easy to reach nose pocket for ear equalization which can be utilized even when wearing gloves. Mask weighs 6.84 oz. (194 g). Mask is available in multiple colors and comes with a protective mask box.