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

SizeChestWaistHipsHeightWeight
Infant (0-9)17-297-22
Infant (0-6)17-277-18
Infant (6-12)27-3118-22
Infant (12-18)31-3322-26
Infant (18-24)33-3526-30
Infant (2-4T)35-4130-38
Toddler (5-6T)43-4740-50
*in inches