Although I'm usually a S for tops, I got a M and it fits well; not too tight or baggy. I love the print and design of the infinity loop, but there is a slight gap under the armpits. It doesn't bother me much and it still fits well, but wish it was a bit more snug under the armpits. I also purchased a Large for my wifey of the same design who loved it but commented about the armpit gap as well. These tops are definitely comfortable enough to wear as a bra, too. Overall, love this brand's concept and products!
