Product Measurement(In inches):

8 Years: Bicep Length: 10.6", Bust: 31.9", Cuff: 24", Length: 27.2", Shoulder: 13", Sleeve Length: 11", Waist Size: 33.9"

9 Years: Bicep Length: 10.9", Bust: 33.1", Cuff: 24.7", Length: 28.5", Shoulder: 13.5", Sleeve Length: 11.4", Waist Size: 35"

10 Years: Bicep Length: 11.3", Bust: 34.3", Cuff: 25.4", Length: 29.9", Shoulder: 13.9", Sleeve Length: 11.8", Waist Size: 36.2"

12 Years: Bicep Length: 11.9", Bust: 36.6", Cuff: 26.9", Length: 32.7", Shoulder: 14.9", Sleeve Length: 12.6", Waist Size: 38.6"