Size is 12m 74. In summer, the sleeveless style with the frills on the arms is cute. It's a denim overall, but it doesn't look too boyish, and it's cute to wear. In autumn, I wore an inner layer and could wear it for a long season. The fabric is Petit Bateau-like, stretchy and soft. *I forgot to button it up when I took the photo, but all three buttons are attached.