Richie House Little Girls' Sweet Sundress with Big Flower RH2154 50% cotton 47% nylon 3% spandex A size 2/3 is for the average 2-3 year old girl, a size 5/6 is for the average 5-6 year old girl, a size 9/10 is for the average 9-10 year old,etc A/B: 95% cotton 5% spandex C/D: 50% cotton 47% nylon 3% spandex Front placket with pleat details and ruffles,closure with transparent buttons,comfortable and wearable,can be worn alone or layered,classic spring/summer/autumn shirt style,fashion and leading the trends,perfect for young girls Size for little girls and big girls are all available,see the other listing