Got this as Im a fair-skinned redhead and Im about to go to Hawaii. Ive had many horrible burns in the past and Im only in my early twenties, so Ive decided to take more precautions.
This fits as expected. Im 57 and 140lbs, B cup, and I ordered a Medium. The shirt isn't too tight or too loose. I was surprised that it was longno butt crack!  This may be a problem for shorter thin women though.
As far as I can tell the shirt is great quality with a nice price tag! I got the Columbia Blue colorthe picture makes it look more purple than in reality, but I don't really care about that.