INFANT	Approximate Age	Weight (lbs)	Size (inches)
Newborn	0-3 months	5-9 lbs	18-21 ''
6 Months	3-6 months	10-16 lbs	22-24 ''
12 Months	6-12 months	17-20 lbs	25-28 ''
18 Months	12-24 months	21-25 lbs	29-31 ''

 

YOUTH	Age Range
Small	6-8
Medium	10-12
Large	14-16

 

 

UNISEX ADULT	Chest to Fit (inches)
Small	34-37 ''
Medium	38-41 ''
Large	42-45 ''
X-Large	46-49 ''
2X-Large	50-53 ''

 

 

WOMEN	Size Range
Small	2-6
Medium	6-10
Large	10-14
X-Large	14-18
2X-Large	18-22