This is a high low top. The front is a top length and it has a longer back. If you size up you could wear as more of a tunic length. The sleeves have a ruffle detail with buttons. They run true to size according to reviews.
Shiloh is 2 years old. 27lbs 34 inches wearing a 2t. I love the fit she does have room to grow.
Livie is wearing a 3t here which is her normal size for a comfy/loose fit. We could have sized down for a tighter fit with a shorter, more t-shirt length, but love this fit! We will not be sizing up this year. She is about 35lbs, 38".