Broke after a week and sweats a lot of water.
Used it on vacation and it sprung a leak after a week.  Assume hole was caused by trying to get ice into the middle core.  Weird design does not allow a lot of ice to get to the core.  Yes, I know the instructions say to not over pack.  Also, sweats a lot so, if trying to keep injury somewhat dry, this material does not work.
Rating: 1 stars