Girls dresses size 2-5 are short sleeves. Girls dresses size 6-12 are three quarter sleeves. Dress lengths size 2= 19.5 inch size 3= 22 inch size 4= 23 inch size 5= 26 inch size 6= 28.5 inch size 7= 30.5 inch size 8= 31.5 inch size 9= 33.5 inch size 10= 35.5 inch size 12= 37 inch