SMALL
Bust: 18 3/4" across
Approx. Fits Bust: 34-36"
MEDIUM
Bust: 18 7/8" across
Approx. Fits Bust: 36-38"
LARGE
Bust: 19 3/4" across
Approx. Fits Bust: 38-40"
Fit Notes:
Measurements are taken flat across the bust. For the best fit, choose your usual size, or size up if you are fuller in the bust or prefer a little more room.