I would not lie to you about something as serious as an air-conditioned shirt, would I.  No, I would not.  I would never toy with your emotions so flippantly.  So when I say there is such a thing as an air-conditioned shirt, you know that this is no joke.

Apparently, this bad boy was born of necessity, as are many inventions:

“It was about two years ago when I first saw ice vests in a running catalog and thought something along the lines of “wouldn’t that be a sweet thing to wear in the car on the way to school instead of blasting my (non-working) A/C!” Well, it seems the idea hasn’t quite died. Some users on the EcoModder forums have recently been discussing this idea, so I thought I’d put together some of the ways I know to beat the heat without turning on the A/C, which reduces your fuel economy.”

There you have it.  There are full instructions on how to make your own A/C shirt on in the link.  Happy summer!