This is professional quality. I received one of these when going to physical therapy back in the late 1990's, and this one is exactly the same. It will NOT stiffen when left in the freezer, and holds the cold for the required length of time you need to ice an area, and is very moldable to various body parts . It has never split open in all these years, and I always keep it in my fridge freezer compartment, ready for use at any time. I relied on this old one (which has never worn out) 2 years ago when recuperating from right hip replacement surgery (anterior approach). Having my left hip replaced in 10 days, and wanted to have a 2nd one always available and cold to use. I highly recommend this cold pack. Nothing else is as good.