Mens Vest Size Chart

Size	Chest Width (in)	Body Length (Back) (in)
XS	20 ½″	27″
S	22″	28″
M	23 ½″	29″
L	25″	30″
XL	26 ½″	31″
2XL	28″	32″
3XL	30″	32½″
4XL	32″	33″