Fail Packs, and I bought 5 of them of varying sizes, have failed by freezing solid making them difficult to apply. Out of 5, 4 are rock solid when frozen. Most leak blue stuff, although I cannot say if I punctured them or it is a failure on the Versa Packs side. Seeing as most are leaking, I doubt that I holed them all.And as I ordered online, cannot return them. Not happy at all with these.