Great for getting kids used to water on their ears
It slipped around on my daughters head a little but it really helped her with letting water touch her ears. She wore it for a few times in the pool and then she didn't need to wear it any more. It was essential in the transition but I can't say if it would work long term for regular use. I had to get it pretty tight on her head to stay put. It was not a water tight seal if thats what you're looking for.
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