Chest Width: Side to side at 1" below the sleeves
Body Length: Shoulder seam at collar to bottom hem


X Small
Chest Width: 17” 
Body Length: 26"

Small
Chest Width: 18"
Body Length: 27"

Medium
Chest Width: 20” 
Body Length: 29"

Large
Chest Width: 22"
Body Length: 31"

X Large
Chest Width: 24"
Body Length: 32"

XX Large
Chest Width: 26"
Body Length: 33"

XXX Large
Chest Width: 28"
Body Length: 34"