This is a toddler sized mei tai. The body is a little wider than size 2 and the seat is darted which makes the fit a bit larger. The mei tai is also 4cm taller. The top and sides are straight in the example below. My standard pattern for this size now how a curved top edge but the straight top edge is still available on custom orders. The photos are of my daughter who was almost 3. This carrier is 46cm/18" high and 46cm/18"wide (if measured across the darts).