"I got this costume in a small for my almost-4-year-old, and it is so big on her. We will be taking it in from the shoulder straps. Otherwise, it is super cute. Comfy and very pretty. The feather stands up very straight, despite my fear that it would "flop" down when she wore the head band. I'm looking forward to Halloween with this costume. It will pair perfectly withe her black mary janes!"