Is a v neck type of shirt In the front, back has a cutout with a button at the top as seen in photos, also comes with a replacement button, has shorts sewn in inside of romper as seen in photos Size small measurements: the width from armpit to armpit is a 16.5 inches, the top length is 6.5 inches, bottom length is 12.75 inches Medium size: (measured the same) width: 17, top length: 6.75, bottom length: 12.75 Large size: width: 18.75, top length: 7.25 inches, bottom length: 12.75 inches