Chest measurement: With your arms down at sides, measure around the upper body, under arms and over the fullest part of the chest.
BUTTON DOWN SHIRT SIZE CHART

SizeChestLength

2XS34 5/8"30 1/8"

XS36 1/4"30 1/2"

S37 3/4"30 7/8"

M39 3/8"31 1/4"

L42 1/2"32 1/8"

XL45 3/4"32 7/8"

2XL48 3/4"33 3/4"

3XL52"35"

4XL55 1/8"35 3/4"

5XL58 1/4"36 5/8"

6XL61 3/8"37 3/8"

Button down shirts consist of 65% recycled polyester, 35% polyester

SIZING RECOMMENDATION:

True to size if not a tad roomy. This is a relaxed fit dress shirt.