I purchased a XS. . thinking it would fit me because i shop on PLT,aero etc. im usually a xs in dresses. . but i think because its not from the "petite" section its meant for taller heights like 5'2 and up. im 4'11 and 110 lbs. im very small. . i ended up just giving this to my sister who is 125 lb and is 5'3-5'4. It was a cute dress though i wish fashion nova can have more of a range for small petite girlies like me!