Their description:
Product Description
The Flip Video Underwater Case lets you safely capture video of your underwater excursions and poolside adventures. This clear acrylic case protects your Flip Ultra Camcorder to depths of up to 30 feet, while granting full access to the camcorder-Feets controls. The case comes with a convenient wrist strap, so you don-Feett have to worry about losing your camcorder while shooting underwater action. Note: The Flip Video Underwater Case is compatible only with Flip Ul… More >>
Go & get it here - i can recommend it:
Flip Video AWC2T Underwater Case for UltraHD and Ultra 2nd Generation camcorders

This item’s great - snorkeling, dives of less than 30 feet, kayaking, and other things where you might worry about a camcorder or camera.
The one thing I would say is that I wish it was rated to 60-100 feet instead of thirty. Obviously video and pictures often wouldn’t be good at that depth - but it would mean I could just carry the camera or stow it away if I was going deeper than 30 feet - as well as most divers, since most divers aren’t really into depth diving. Surfacing and going back down unnecessarily isn’t usually good for dive time, obviously, because the frequent condensing and expansion of nitrogen can cause decompression sickness. Most regular open water divers I think would benefit if it was rated for more depth.
Okay, I can understand it might not make as much profit if it was rated higher. Then again… People might appreciate a higher depth rating if they drop it!
Amazon did a great job serving up a low price, (I paid 4X as much for my underwatercase for my Sony digital camera). Shipping was fast and it was package well. The case itself is of good quality (as good as my Sony underwater case). I cannot comment on it’s worthiness yet, because I have not tested it as of yet. My Sony case came with well defined, written, pre-testing and end of use maintenance procedures and a tube of silicon-based grease for the sealing ring, a cleaning cloth, as well as maintenance procedures for the sealing ring itself. The Flip Video AWCT I received contained minimal use instructions, period. I find this to be a serious deficit because improper use and maintenance of the sealing ring by a novice underwater case buyer may cause fatal damage to their videocam.