Mares Star liquid skin dive mask is suitable for both scuba diving or free diving, and uses liquid skin technology to deliver unparalleled comfort and fit. This low volume mask improves your field of view, and is easier to equalize and clear. The Mares Star liquid skin mask features special liquid skin technology developed for a comfortable mask skirt. Using bi-silicone technology, two different formulas of Silicone create a soft, comfortable seal on your face. One Silicone type is Firm to support the structure of the mask frame, while the Silicone that touches your face is a softer, lighter formula. Perception of distance and vision parameter is increased by reducing the distance between the mask lens and your eye, for a low internal volume that's also easy to equalize. Both scuba divers and free divers will admire the features of the Mares Star liquid skin.