This sweater is very cute and runs quite small and cropped. It's great if you're not tall but might not work if you're above average height. I am 4'11'' and usually wear size petite XS. I sized up and bought both S and M. Both fit me with a boxy, relaxed look, and hit an inch below my belly button, around where the waist of a low-rise pant would fall. The M is cut a little wider in the chest and arms than the S but is nearly the same size otherwise. Both sweaters are around 17 inches long (i.e., quite cropped) and have an approximately 30.5 inch sleeve length (from the center of the back of the neck to the cuff). The sweaters are medium thickness, but the yarn is lightweight and airy, so the sweater weighs much less than I expected. The yarn fibers are also a little fuzzy (i.e., not the highest quality), but I'm quite happy with the sweaters for the price. The tag says 100% cotton, and the symbols indicate hand wash, dry flat.