I have ordered tanks in this material (in other but similar styles) before, so I know these tend to run pretty compressive (tight).
I’m usually a true medium but I ordered two styles from this listing top, sizing up to large.
There is definitely room to move & since I sized up they are slightly loose while still being fitted. I really prefer not to have tops be too compressive or cut into my armpit & back fat, so this worked for me! Whenever I feel they’re not fitted enough I just use the dryer when I wash them instead of air drying.
I love the cut and style so much, I will definitely order in other colors as well :)
For reference: 5’4” / 140 / 36A-B / semi muscular