Size Chart(Product Measurement):

Tops:
8 Years: Bust: 24.8", Waist Size: 20.6", Length: 15.7/6.1"

9 Years: Bust: 26", Waist Size: 21.8", Length: 16.3/6.5"

10 Years: Bust: 27.2", Waist Size: 23", Length: 16.9/6.9"

11 Years: Bust: 28.3", Waist Size: 24.1", Length: 17.5/7.3"

12 Years: Bust: 29.5", Waist Size: 25.3", Length: 18.1/7.7"

Pants:
8 Years: Waist Size: 30.7-20.5", Hip Size: 25.7", Length: 9.2", Thigh: 16.2"

9 Years: Waist Size: 31.9-21.3", Hip Size: 26.9", Length: 9.4", Thigh: 16.9"

10 Years: Waist Size: 33.1-22", Hip Size: 28.1", Length: 9.6", Thigh: 17.6"

11 Years: Waist Size: 34.3-22.8", Hip Size: 29.3", Length: 9.9", Thigh: 18.3"

12 Years: Waist Size: 35.4-23.6", Hip Size: 30.4", Length: 10.1", Thigh: 19"