The design of this style is slightly fitted with a crew neckline, loose long sleeves, and slightly cropped hem. For a more standard fit, choose a size up.
Measurements are flat measurements as indicated in the photo. For the full bust, waist, and sweep, measurement, double the number given.
I like the top. It is very soft and light weight so it's great in warm weather. When its cool, I can layer another tee under it. The sleeves are wide which I expected, but I did make a little tuck in the sleeve cuff to tighten it up. The tee is true to size. I ordered a small and am 5' and 105 lbs. Probably could get XS but I like the loose fit.