I didn't try it on until I got home, but I grabbed the size S. It's actually a very very nice tank! The material is very comfortable, it is micro modal and elastine. The S is fitted but not too tight. I think I could even size up to a M for a looser fit. The length is slightly longer in the back than the front. By like half an inch at the most.
I wondered why this tank came with such a big tag, but I didn't have time to read it until I got home. Apparently, kids drew these pocket designs and for every item you buy, the company donates a backpack full of school supplies. How cute! Why not buy something that looks super cute AND benefits a kid.
This is the little guy that drew the elephant!
He drew a pretty good elephant!! I love it. I'm not sure why the feet are on top but I still love it lol.
Here's the tag near the front and back split: