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

SizeHeight_(inches)Weight_(lbs)
 3T – 4T38 - 42"33 - 36lbs.
 Small (4/6)44 - 46"44 - 49lbs.
 Medium (7/8)51 1/2 - 54"59 - 66lbs.