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

SizeChestWaistHipsInseamHeight
SM (4-6)26"23.5"26"19-20"43-49.5"
MD (7-8)26.5"24.5"27.5"21-23"50-53.5"
LG (10-12)28"26.5"30"24-26'54-60"
Tween/XL (14-16)31"29"33"26-27"59-64"
Boys Costume Sizing Chart Diagram