What's the point?

The body is an amazingly complex system. It works constantly to maintain a very narrow band of internal temperatures to keep operating optimally.

But when you are working hard in hot and humid conditions, it becomes REALLY difficult-- and occasionally impossible-- for the body to stay within that narrow range on its own.

Help your body out.

Heat dumping helps your body do its job better than it can on its own.

That helps you stay safer, and play/work harder for longer.