Size Chart:

Tops:
8 Years: Shoulder: 9.8", Length: 10.6", Bust: 24.0"
9 Years: Shoulder: 10.2", Length: 11.1", Bust: 25.2"
10 Years: Shoulder: 10.5", Length: 11.7", Bust: 26.4"
11-12 Years: Shoulder: 11.1", Length: 12.7", Bust: 28.7"

Bottoms:
8 Years: Length: 8.7", Waist Size: 20.5", Hip Size: 27.2", Thigh: 17.7"
9 Years: Length: 8.9", Waist Size: 21.1", Hip Size: 28.3", Thigh: 18.4"
10 Years: Length: 9.1", Waist Size: 21.7", Hip Size: 29.5", Thigh: 19.1"
11-12 Years: Length: 9.6", Waist Size: 22.8", Hip Size: 31.9", Thigh: 20.6"