no room for under layers
If you order your regular size, know that the Chakra zip fits skin tight in the torso. I was hoping to use this top as an extra layer for running/biking over a sleeveless or short sleeve top, but there is absolutely no room for another layer beneath it. I usually wear a small and have an athletic build (no belly to speak of). I don't want to go a size up as then it will be too big across the back and chest (you know -- that "bat wing" under arm effect). The sleeves are nice and long and it is a well-made piece. If it had a little extra room in the torso, it could function as a base layer as well as a second layer... and be perfect. As is, it's not a keeper.