Both literally and figuratively. I'd been looking for a short sleeve zip up for a while for something relatively cool but that I can easily take off. Very few places have anything like this and when I started searching more seriously a lot of them are very expensive. I think the jersey/jacket is really sharp looking. It did run a bit small, even under the arms so I had to exchange for larger size. It's still snug on the bottom but it meant to be sleek and works fine. I went running with it on and it was so comfortable. I was wary about using the pockets in the back because there's no zipper or anything that would seem to prevent things popping out. I've been using a pedometer app on my phone so I thought I'd try the phone and see how it went. The middle pocket is wide enough that I could put it in crosswise so it stayed put, no prob. Used the other 2 pockets too. It rained and I didn't feel clammy at all. Overall a great item.