Size Chart(Product Measurement):

Tops:
8 Years: Shoulder: 18.3", Length: 14.3/13.7", Bust: 29.7", Cuff: 14.9"

9 Years: Shoulder: 18.9", Length: 14.8/14.2", Bust: 30.9", Cuff: 15.3"

10 Years: Shoulder: 19.5", Length: 15.4/14.7", Bust: 32.1", Cuff: 15.6"

11 Years: Shoulder: 20.1", Length: 15.9/15.2", Bust: 33.3", Cuff: 16"

12 Years: Shoulder: 20.7", Length: 16.4/15.7", Bust: 34.4", Cuff: 16.3"

Pants:
8 Years: Length: 31.9", Waist Size: 21.3-29.9", Hip Size: 30.3", Thigh: 19.7"

9 Years: Length: 32.9", Waist Size: 21.9-31.1", Hip Size: 31.5", Thigh: 20.4"

10 Years: Length: 33.9", Waist Size: 22.4-32.3", Hip Size: 32.7", Thigh: 21.1"

11 Years: Length: 34.8", Waist Size: 23-33.5", Hip Size: 33.9", Thigh: 21.9"

12 Years: Length: 35.8", Waist Size: 23.6-34.7", Hip Size: 35", Thigh: 22.6"