Wearing size small in my tank top (I own it in a bunch of colors!), size xs in my black cotton button up, and size 00 (straight fit—but they also come in a curvy fit that has more room in the thighs and hips!) in medium wash in my denim shorts! My sandals fit true to size🖤 LTKFindsUnder100 LTKStyleTip LTKPetite