I bought this shirt a few months ago on sale (Flame Heather color) and I've really come to like it more and more. It's very comfortable to run in, or even just lounge around the house in. It's also very flattering, the only reason I don't wear it around town is that it is pretty see-through. You can sort of see this in the pictures online, but when you wear it with a dark sports bra, it becomes much more obvious. I usually wear a women's medium, but sized up to a large given this shirt's function and I think I made the right call. Medium would probably have worked just as well, though.