Richie House Little Big Girls' Princess Party Dress Rh2417 100%polyester Lining:100%cotton A size 4 is for the average 3-4 year old kid,a size 5 is for the average 4-5 year old kid,a size 8 is for the average 7-8 year old kid,ect For a day spent outdoors or an afternoon with pals, this dress is great for little sweeties.Little ladies will be the belle of the ball donning this darling dress. SIZES FOR LITTLE AND BIG KIDS ARE BOTH AVAILABLE, PLEASE CHECK THE OTHER LISTING IN THE OTHER SIZE RANGE