Posted by a reviewer on Amazon

The eco vessel is also more prone to leaking when lying on its sidethe plastic used in the threads of the eco vessel caps is thinner and if you dont carefully screw the caps on and make sure they are straight as well as tight you might find your ice water has leaked out if your bottle lies horizontally

Posted by a reviewer on Amazon

Have had several games using the eco vessel where i went to drink some ice water between innings only to find it had all leaked out

Posted by a reviewer on Amazon

Now if only they could work on the design to slim it down a bit

Posted by a reviewer on Amazon

Nice curve on the outside makes it easy to hold but the base will not fit in any cup holders

Posted by a reviewer on Amazon

One thing that is a bit annoying is that with an average sized ice cube tray you have to be careful to not make the ice cubes too big as they dont fit in

Posted by a reviewer on Amazon

I suspect that it has lost its seal and is no longer a vacuum

Posted by a reviewer on Amazon

Updated review 2272013i contacted eco vessels customer service regarding this issue and they will be shipping me a replacement