Generic Sizing

Men

XS
S
M
L
XL
XXL
3XL
4XL
Neck (in.) 13-13.5 14-14.5 15-15.5 16-16.5 17-17.5 18-18.5 19-19.5 20-20.5
Chest (in.) 33-34 35-37 38-40 42-44 46-48 50-52 54-56 58-60
Sleeve (in.) 31.5-32 32.5-33 33.5-34 34.5-35 35.5-36 36-36.5 36.5-37 37-37.5
Waist (in.) 27-28 29-31 32-34 36-38 40-42 44-48 50-52 52-54

Men's Big - If Shorter than 6'2" and waist measures more than chest.

XB
2XB
3XB
4XB
5XB
6XB
Neck (in.) 17-17.5 18-18.5 19-19.5 20-20.5 21-21.522-22.5
Chest (in.) 46-48 50-52 54-56 58-60 62-6466-68
Sleeve (in.) 34.5 35-36 35.5-36.5 36-37 36.5-37.537-38

Men's Tall - If Taller than 6'2" and waist measures less than chest.

XLT
2XLT
3XLT
4XLT
5XLT
Neck (in.) 17-17.5 18-18.5 19-19.5 20-20.5 21-21.5
Chest (in.) 46-48 50-52 54-56 58-60 62-64
Sleeve (1~2 inches longer
than regular style)
37.5-38.5 38-39 38.5-39.5 39-40 39.5-40