Luna Size Chart:

 Size Pant Size Bust (in.) Waist (in.) Hips (in.)
XS 0 - 2 33 - 34.5 25.5 - 26.5 35.5 - 36.5
S 4 - 6 35 - 36 27.5 - 28.5 37.5 - 38.5
M 6 - 8 36 - 37.5 28.5 - 30 38.5 - 40
L 10 - 12 39 - 40.5 31.5 - 33 40.5 - 41.5