Definitely waterproof and a great buy considering all other fully sealed cases are over $50 but I ended up returning this BC. zip pocket. It doesn't rustle, but makes a "shhhh" sound when moving. And the other side of the bed inflates when you go to bed, not that it matters or affects the quality, but it's like a bag and there's nowhere for the air to go. Now I only use the waterproof top coat and prefer this style.
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