When trying to decide between two sizes, choose the larger size for a better fit.

SizeChestWaistHipsHeightWeight
12-18 Months21222132up to 27 lbs
18-24 Months22232234up to 29 lbs
S(2-3)23242337up to 34 lbs
M(3-4)24232440up to 38 lbs
L(4-6)25242646up to 55 lbs
M/L24-2523-2424-2646up to 55 lbs
*in inches
Baby Costume Sizing Chart Diagram