FlowBoot has made post race cold therapy even easier! These soft foam wraps are contain a soft gel pack that does not freeze solid. You simply soak them in water wrap them in a plastic bag and throw them in the freezer. When we head out to a race we stick them in an ice chest to apply after our runs. They come with their own 6" neoprene wraps to hold them in place. At $160/pair they're hard to beat for price and convenience. You can get them to fit either the tendons or hocks/knees. These are typically left on for less than an hour. We use them for 20-30 minutes at a time.