Cooling a suit?

[elementsnstuff]

I was wondering if there are any interesting ideas out there on cooling a suit from the inside, in case things got hot and stuffy.
The only idea I had was an inflatable plastic bag encompassing the body inside the suit, which would have airflow from a fan somewhere on the outside and an exhaust port, for a constant flow of cooling air. Thoughts?

 

[Mockle]

there is all sorts of ways, I have a few things I was thinking in builds im doing time will tell..

 

[Mithosphere]

Get a cooling vest (or pants and vest and hat), they're expensive and sometimes bulky, but if they're good enough for drag racers, they should be plenty for a cosplayer