Size Guide

PHD Custom Sized Down Jackets

Once you've selected a Body Width you can choose Body Length and Arm Length up to two sizes bigger or smaller. For example, a jacket with a medium (M) Body Width can be XS, S, M, L, or XL in Body Length and XS, S, M, L, or XL in Arm Length. If you have any questions about your size, please contact us.

Body Width. Use the chart below to find your Body Width. Measure yourself without clothes, relaxed with an uninflated chest.

Body Width Chest circumference Waist circumference
XS 86cm (34") 71cm (28")
S 91cm (36") 76cm (30")
M 99cm (39") 84cm (33")
L 107cm (42") 91cm (36")
XL 114cm (45") 99cm (39")

Body Length -- can be two sizes up or down from Body Width. Use the chart below to find your Body Length size. Measure your height without shoes:

Body Length Size Your height in cm Your height in inches
XXXS 139 - 144cm 4'5" - 4'8"
XXS 145 - 154cm 4'9" - 5'
XS 155 - 163cm 5'1" - 5'4"
S 164 - 170cm 5'5" - 5'7"
M 171 - 178cm 5'7" - 5'10"
L 179 - 186cm 5'10" - 6'1"
XL 187 - 193cm 6'2" - 6'4"
XXL 194 - 201cm 6'4" - 6'7"
XXXL 202 - 209cm 6'8" - 6'10"

Inside Arm -- can be two sizes up or down from Body Width. Inside Arm is measured from armpit to wrist-bone without clothes. When you measure your inside arm let your arm hang loosely by your side. Don't extend it horizontally.

Inside Arm cm Inches
XXXS 41cm 16"
XXS 43cm 17"
XS 46cm 18"
S 48cm 19"
M 51cm 20"
L 53cm 21"
XL 56cm 22"
XXL 58cm 23"
XXXL 61cm 24"

N.B. PHD clothing is unisex. 


  • Down Jackets are sized to fit over thermal underwear & fleece.
  • The arms of our outdoor jackets are designed to be long enough to keep your wrists warm when your arms are extended horizontally (when using trekking poles, for example) or when you are reaching above yourself (when climbing, for example). In this respect the arm lengths of our jackets differ from street/fashion jackets.