Reference the below chart for sizing purposes. Typically men should always order up one size, but for anyone in doubt, we highly recommend sizing up for a more relaxed fit. We're aiming for absolute comfort here.
LENGTH (inches)
CHEST WIDTH (inches)
S
27
20
M
28
21
L
29
23
XL
30
25
2XL
31
26 ½
3XL
32
28
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