Shoulder x Bust x Length
S – 9 x 11 x 18 inches – (Up to 2 yo)
M – 10 x 12 x 22 inches (2 - 3 yo)
L – 11 x 14 x 25 inches (4 - 5 yo)
XL – 12 x 15 x 27 inches (6 - 7 yo)
*Measurement when lay flat