I've had a Canari Biovent jacket for about 4 years. The only reason I haven't thrown the darn thing out is because it's screaming lime-yellow and makes me visible.

It's about as breathable as a Zip-loc bag. The inside will be running with sweat after a 20 minute ride.

Does anyone know of a way to make a jacket breathe more? Cutting or sewing tricks? Something special to wash it in? Poke it a bajillion times with a pin?

I think I want a Pearl Izumi Whisper vest...