My Daughter just turned 2 and mostly wears 18 months.  I got a 2T based on the reviews.  Now she is in the 20% for height and 5% for weight so she's tiny, the sleeves were just to her wrist by the skirt barely covered her but.  I got a pair of sparkly white pants for like $3 from wally world to solve that.  Now her head is in the 50-60% and i had to cut the hat up the sides about 2" on each side to get it over her head!!  Still it would not stay on!  It's very cut but i think the hat could be bigger and the skirt longer.