Low volume masks are great and recommended for freedivers because it only requires a little bit of air when equalizing it. This mask keeps your eyes and nose protected while diving while the j-type snorkel’s simple build provides ease of use and comfortability in breathing even for beginners. Mask • Liquid silicone skirt. soft and comfortable for easier equalization • With anti UV-400 resin (plastic) lens • 120° wide angle view • Snug fit