I tried this on in the store in a regular medium and the size was fine, just the length. fortunately retailer will ship for free if you need a petite! i'm so excited to get this. i'm 5'1 and a bit busty, and the medium fit perfect. its very flattering and so comfortable! perfect for a hot summer day. or as the cute clerk in the store had it styled with a cropped jean jacket and a fun necklace. the styling idea's are endless. i'm waiting by the mailbox for it to arrive!