G-SIZE5

 Size Age Waist(in) Hip(in) Length(in)
S 8-10 24-25 30-31.5 11.8
M 10-12 25-27 32-33.5 13.0
L 12-14 27-28 34-35.5 14.2
XL 14-16 28-29.5 36-37.5 15.3

The sizes are manually measured with error from 0.2 to 0.8 inches.