Girls dresses size 2-5 are short sleeves. Girls dresses size 6-12 are three quarter sleeves. Dress lengths size 2= 19 inch size 3= 21.5 inch size 4= 23 inch size 5=25 inch size 6= 27.5 inch size 7= 29.5 inch size 8= 30 inch size 9= 33 inch size 10= 35 inch size 12= 37 inch