Hardcore Luxury® -- Always 100% USA

CPO Shirt Size Chart

NOTE: The tables show the measurements of the garment itself.

Click to return to CPO Shirt page.

Please follow these directions to ensure you order a garment that fits the way you want.

The easiest way to determine the size you should order is to measure a garment you already have that fits the way you want. (Why measure a garment?)

  • The garment you measure should not be a knit, because knits are normally too stretchy
  • Completely close the center front of the garment
  • Lay the garment very flat on a table
  • Measure across the chest, just below the armpits
  • Double the measure across the chest, giving the actual chest size of your garment
  • Compare the chest size of your garment with the sizes in the chart (inches or centimeters)

For example, if your garment measures 24 inches across the chest, you would order a size Large because the 48-inch chest of the CPO matches the 48-inch chest of the garment you measured. The Medium would be too tight. And even if your garment measured 23 inches, you would still order the Large because the Medium is an inch smaller than the size you prefer. A little big is usually much better than a little bit small.

If you seem to be in-between sizes, we suggest ordering the larger size.

  • Chest is measured 1 inch below armhole.
  • Bottom Circumference is measured at bottom of garment
  • Over Shoulder Sleeve Length is measured from center back of neck across outside of arm to the end of sleeve
  • Body Length is measurement from the collar seam (center back) to bottom of garment
  • Shoulder-Shoulder measurement is from shoulder tip thru back of neck to other shoulder tip point

In August of 2023, WeatherWool began using sizing-guide drawings from Rachael Kranick (RachaelKranick.com). This drawing shows how WeatherWool’s CPO is measured. 

We will soon replace the size chart below with an updated chart that is more consistent with the new drawing.

CPO Shirt measurements in inches:

Shirt Size

XXXS XXS

XS

S

M

L

XL

2XL

Chest

39 40

42

44

47

50

53

56

Bottom
Circumference

38 39

41

43

46

49

52

55

Over Shoulder Sleeve
Length 

32.75 33

34

34.5

35

35.5

37

38

Body
Length 

28 29

30

31

31.5

32

33

34

Shoulder-
Shoulder

17 17.5

18

18.5

19

19.5

20.5

21.2

 

 Shirt measurements in centimeters:

Shirt Size

XXXS XXS

XS

S

M

L

XL

2XL

Chest

99 102 107

 

112

119

127

135

 142

Bottom
Circumference

97
99

104

109

117

124

132

140

Over-Shoulder Sleeve
Length 

83 84

86

88

89

90

94

97

Body
Length 

71 74

76

79

80

81

84

86

Shoulder -
Shoulder

43 44

46

47

48

50

52

54

 

 

13 September 2023 --- Ralph