This is one of the comfiest tanks I own. I wear it all the time for leisure, as well as biking and running because it's flowy and the open arms keep it breathable. This material is such a soft comfy feel somewhere in between tech and cotton. I also think the graphic is sick! I'm 5'5" 130 lbs and wear a small really comfortably - lose fitting but not overly baggy.
Dakine clothing always fits me weird. The small tops are always way too small, but then I'm swimming in the mediums it seems. In this particular top the body fits really well. I can move easily, however I feel the armholes are way too big. If the arm holes were smaller to not show off my sport bra i'd have giving it 5 stars.