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Size Chart(Product Measurement):

8 Years: Bicep Length: 9.4", Bust: 26.0", Cuff: 6.3", Length: 13.0", Shoulder: 9.6", Sleeve Length: 18.5"

9 Years: Bicep Length: 9.8", Bust: 27.2", Cuff: 6.5", Length: 13.5", Shoulder: 10.1", Sleeve Length: 19.3"

10 Years: Bicep Length: 10.1", Bust: 28.3", Cuff: 6.6", Length: 14.0", Shoulder: 10.6", Sleeve Length: 20.1"

11-12 Years: Bicep Length: 10.7", Bust: 30.7", Cuff: 6.9", Length: 15.0", Shoulder: 11.5", Sleeve Length: 21.7"

Pants:

Size Chart(Product Measurement):

8 Years: Hip Size: 32.3", Length: 31.5", Waist Size: 20.5-29.1"

9 Years: Hip Size: 33.5", Length: 32.9", Waist Size: 21.3-30.3"

10 Years: Hip Size: 34.6", Length: 34.3", Waist Size: 22-31.5"

11-12 Years: Hip Size: 37.0", Length: 37.0", Waist Size: 23.2-33.9"