I was in Missoula today, it broke some kind of all-time temp mark @ 107dF. I bought a white short-sleeve shirt (snap button of course). I also saw lots of riders only wearing tank tops and shorts

I like the wet t shirt/vented armor mesh idea. It's like having a personal portable swamp cooler

"It's not what I say that's important, it's what you hear" Red Auerbach