The Coretech CardioCool shirt is basically the same as the Coolshirt usually used in the motorsports arena, same idea, same fittings.

The BIG difference is the much higher density of water piping: the CardioCool has FAR more cooling capability than the Coolshirt. 

The zippered vest has been used very briefly - a failed 'try while motorcycling experiment' -  and is in perfect, flawless as-new condition.