Late 80s/Early 90s T-Shirts

Does anybody else remember those T-shirts that would change color with temperature changes? The color change isn’t profound, different shades of the same color. It’s also not uniform, so the shirt takes on a splotchy appearance. I remember people would breathe on them or press their hands against it to induce the color change in patterns or shapes.I remember a couple people in my third or fourth grade class had them, which would put it at about '92. In the last week or two I’ve gotten into three seperate discussions of 80s fashion, and none of the people I’ve talked to have any recollection of these shirts. Anyone out in Dopeland remember these? Or, even better, have a link to a picture of one so my friends don’t think I’m insane?

Hypercolor.

I had two shirts in fourth and fifth grade 1989-1990. They were subsequently banned from my elementary school because me and some friends “branded” cuss words into them. Ah, childhood.

I had one. It was brown and turned yellow.

I had one too… after many washings, it ‘stuck’ in one colour.

Haha, I want one. I certainly don’t remember them, but then I was fiven when the '80’s ended. Do they still make them, I wonder?

Here’s one on eBay.

I remember the armpits changing color <snicker>