Richie House Girls' Knit Summer Dress Size 1-6Y RH2488 100% Cotton A size 2 is for the average 1-2 year old girl, a size 4 is for the average, 3-4 year old girl, a size, 5 is for the average 4-5 year old kid, etc. Upper part cotton knit fabric, floral bottom, elastic waist This sweet frock pulls on easily overhead to provide a prim and pretty look for little ladies. For a day spent outdoors or an afternoon with pals, this dress is great for little sweeties.