Review (5/5): 2nd purchase; 7+ year old ones holding up great
These are great, and I just bought more because we've had an injury in the family that requires frequent icing. I bought two of these back in...2012 I think(?) after getting in a car accident, and those original two are still perfectly usable.
These freeze well, but you can still manipulate them even when totally frozen, so bending to fit the body part in question is easy. Well worth the price.