Reviewed by runnner hiker in nh from NH on Wednesday, March 13, 2013
First, its a great color, got the green, and it has high visibility without being too neon. I've worn it trail running and cross country skiing, so can't attest to it biking yet, but it is not what I would consider breathable. I was soaked at the end of the work out. however, when it rained and I was walking around, it kept me dry. Solid wind blocking, good cut and construction.