Elizabeth James Size Chart

US Size Chart 

SIZE BUST WAIST HIP
XS 0-2 32.5-33.5 25.5-26.5 35.5-36.5
S 4-6 34.5-35.5 27.5-28.5 37.5-38.5
M 8-10 36.5-37.5 29.5-30.5 39.5-40.5
L 12 39 32 42
XL 14-16 40.5-42 33.5-35 43.5-45 

Measurements are in inches.