Size Chart(Product Measurement):

8 Years: Bust: 29.9", Cuff: 10.2", Length: 16.5", Shoulder: 11.8", Sleeve Length: 6.1"

9 Years: Bust: 31.1", Cuff: 10.6", Length: 17.3", Shoulder: 12.3", Sleeve Length: 6.3"

10 Years: Bust: 32.3", Cuff: 10.9", Length: 18.1", Shoulder: 12.8", Sleeve Length: 6.4"

11-12 Years: Bust: 34.6", Cuff: 11.5", Length: 19.7", Shoulder: 13.7", Sleeve Length: 6.7"