• Special tube and seal system automatically equalizes ear pressure as diver exhales into mask
• Prevents pressure-induced ear ache (barotrauma)
• Enhanced underwater hearing and sense of direction
• Watertight ear cups keep water out to keep ears warm and prevent infection
• Prior to the first time using, simply remove the matte protective film inside of the mask. Rinse with water before each dive for a better experience. Treat with care, avoid cuts, scratches, and high temperature.
• Clean with fresh water instead of detergent and cleanser.

IST?s newest technology in Anti-Fog Lens Film eliminates foggy mask problems! This quality mask is a fantastic state of the art mask which is ideal for comfort and performance! Good for scuba diving and/or snorkeling.