True to Size (size up for oversized)

product-measurements
A = Width, B = Length, & C + D = Sleeve length
Size Label (Inches) A B C D
XS 18 ½ 26 ⅜ 5 ¼ 23 ⅝
S 20 ⅛ 26 ¾ 5 ½ 23 ⅞
M 21 ⅝ 27 ⅛ 5 ¾ 24
L 23 ¼ 28 ⅛ 5 ⅞ 24 ¼
XL 25 ¼ 29 ⅛ 6 ½ 24 ⅜
2XL 27 ½ 30 ¼ 6 ⅞ 24 ⅝
3XL 29 ⅞ 31 ½ 7 ½ 24 ¾
4XL 32 ¼ 32 ⅝ 7 ⅞ 25