I was concerned about size from other reviews.  It works for us, though!  Our son is large for being two with a bigger head too.  We did have to cut the head hole but that was an easy fix.  The little cap fits him well and he looks darling.  There isn't a romper...just the felt dress and cap.  He will just wear sweats and a tshirt underneath for trick-or-treating.  Overall very cute and  I recommend.