It says it's three-quarters of an inch thick.

It seems overpriced to me.

I like Martin F's pack better, except for the duct tape, which I would replace with 1" wide waterproof adhesive tape (I had to get it from my vet). I am also considering something like a folded piece of plastic wrap to temporarily seal a deep chest wound, but it's hard to peel apart when your hands are shaking.

Sue