NWT Zara Denim shirt dress. Non stretch Size Small

Short sleeve denim mini dress. Distressing on sleeve edges and pockets. Skirt part has zip fly and the rest buttons up. Product code 6147/159 Amazing dress but too tight on my chest (32d). Material might relax with wear since its 100% cotton but not totally sure since I haven’t worn it. Approx measurement: Chest( pit to pit): 16” Waist: 13” Hips: 18” Length: 32”