- The IST Pro Ear mask has an incredible design, offering pressure equalization technology through a tube and seal system that's unique to IST - simply exhale into the mask to clear your ears immediately
- The soft, silicone ear cover forms a watertight seal to maintain equal air pressure between your ear canal and the air inside the cover
- Soft, hypoallergenic silicone skirt offers a snug, yet comfortable fit that hugs facial contours while providing an ample nose pocket for easy exhales
- IST Pro Ear eliminates pressure-induced ear pain and enhances sense of sound under water
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