awesome !I need these for chronic lower back pain and this brand by far is the best of home use types I've tried.Mine last up to 2 hours at a time , even during the summer one hour of use in my normThis will be my 3rd Colpac ice pack , I try to keep 2 on hand at all times and my first COLPAC (bought in2005) started to come apart at the long seam in August 2014 and was due for replacement.If all of them last at least 7 to 8 years of daily use , like my first one did , then this has to be the best dollars I've spent on health care items.I had smaller ones bought at drug stores fall apart in a month or two with my normal usethese come through daily use like a champ , highly recommend them
Rating: [5 of 5 Stars!]