I have found the best rash guard sun shirt! I love the adjustable sides so I can wear it as a swim dress / cover up to and from the pool, but also as a swim shirt on the water! This sun safe shirt has me sold. I’m buying more!
This is cut tight on too and looser on hips and butt - the fabric is stretchy so you can wear it tight and fitted or loose depending on how you want it to fit.
I usually wear a small in dresses and wear that in this size as well. It is awesome!