Oh, to have a cold pack which encompasses a large swath of your back and not have to keep negotiating where to place it! It really does make all the difference. The Polyurethane ColPac is sturdy, stays malleable, and keeps cold for quite a while after you take it out. Perfect for an end of the day chill of nagging back pain. The only caveat is that you have to have freezer space to keep it, since they recommend not folding it. I've now devoted one shelf to my various sized packs.
Rating:
[5 of 5 Stars!]