Chest Width
Body Length at Back 
Sleeve Length
S
20.5"
28.5"
34.25"
M
22"
28.75"
34.5"
L
23.5"
29.5"
35.35"
XL
25.5"
30.5" 
35.75"
2X
27.5"
31.25"
36.5"
3X
29.5"
31.75"
 37.25"
4X
31.5"
32.5" 
38"