Approx. measurements of the item laid flat, unstretched (except waist). Please note that items were hand measured and slight difference is possible: 3-4 Years Armpit to armpit 11” Length 14” Trousers Full Length 14”, 5-6 Years Armpit to armpit 11.5” Length 15” Sleeve Length 15”, 7-8 Years Armpit to armpit 12” Length 17” Sleeve Length 16”, 9-10 Years Armpit to armpit 13” Length 18” Sleeve Length 18”, 11-12 Years Armpit to armpit 13.5” Length 19” Sleeve Length 19”, 13-14 Years Armpit to armpit 14” Length 20” Sleeve Length 20”,