Size Chart(Product Measurement):

8 Years: Bicep Length: 12.2", Bust: 33.9", Cuff: 6.7", Length: 19.7", Shoulder: 13.4", Sleeve Length: 18.1"

9 Years: Bicep Length: 12.5", Bust: 35.0", Cuff: 6.9", Length: 20.5", Shoulder: 13.9", Sleeve Length: 18.9"

10 Years: Bicep Length: 12.8", Bust: 36.2", Cuff: 7.0", Length: 21.3", Shoulder: 14.3", Sleeve Length: 19.7"

11-12 Years: Bicep Length: 13.5", Bust: 38.6", Cuff: 7.3", Length: 22.8", Shoulder: 15.3", Sleeve Length: 21.3"

13-14 Years: Bicep Length: 14.1", Bust: 40.9", Cuff: 7.6", Length: 24.4", Shoulder: 16.2", Sleeve Length: 22.8"