IST
IST Pro Ear Dive Mask with Ear Covers Twin Lens Tempered Glass - Black
IST Diving Pro Ear Dive Mask - Twins Lens - Tempered Glass - Black
- 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
- Optical prescription lens option available in diopters from -1.0 to -8.0 in -0.5 decrement