Richie House Little Girls' Princess Sweet Dress Size 2-8 RH2436 65%cotton 35%polyester Lining:100%cotton A size 4 is for the average 3-4 year old girl, a size 5 is for the average 4-5 year old girl, a size 6 is for the average 5-6 year old kid,etc A fashionably adorable essential dress for your young girl that is at the head of fashion. This solid color dress is a charming mixture of textures. It sports a structured look that's easy to wear thanks to a half zipper in the back.