Size Chart(Product Measurements):

8 Years: Bicep Length: 11.8", Bust: 25.2", Cuff: 6.1", Hip Size: 50.4", Length: 29.5", Shoulder: 10.2", Sleeve Length: 19.7", Waist Size: 22.8-29.9"

9 Years: Bicep Length: 12.1", Bust: 26.4", Cuff: 6.3", Hip Size: 52.3", Length: 30.9", Shoulder: 10.7", Sleeve Length: 20.5", Waist Size: 24-31.1"

10 Years: Bicep Length: 12.4", Bust: 27.6", Cuff: 6.4", Hip Size: 54.2", Length: 32.3", Shoulder: 11.2", Sleeve Length: 21.3", Waist Size: 25.2-32.3"

12 Years: Bicep Length: 13.1", Bust: 29.9", Cuff: 6.7", Hip Size: 58.0", Length: 35.0", Shoulder: 12.1", Sleeve Length: 22.8", Waist Size: 27.6-34.6"