Richie House Girls' Lovely Dress with Belt to Adjust at Waist Size 3-12Y RH2638 100%polyester Lining:100%cotton A size 3/4 is for the average 3-4 year old kid,a size 7/8 is for the average 7-8 year old kid,a size 9/10 is for the average 9-10 year old kid,ect Cotton lining,comfortable and wearable,all-patterned with embroidery,short sleeve with bow to decorate,waist with belt to adjust Little ladies will be the belle of the ball donning this darling dress.