After re-checking the sizing, this brand do run a bit small—most staff who normally wear a US 32–34 / L need a 34–36 / XL–XXL in this brand. So we recommend sizing up.

5' 7" / 170cm and 143lbs / 65kg. He wears a size S.
5' 9" / 178cm and 154lbs/70kg. He wears a size M. As the pictures show.
5' 11"/ 180cm and 176lbs / 80kg. He wears a size L.
5' 9" / 178cm and 194lbs / 88kg. He wears a size XL.
5'11" / 180cm and 209lbs / 95kg. He wears a size XXL.

Description
Inspired by the 1937-1942 pre-WWII work shirts, this garment is crafted from 10.5 oz plain weave denim. Left chest boasts iconic pre-war features, and is finished with a flap. The right chest features a larger pocket with a vertical pen slot to balance storage.
Stitched with triple-stitching throughout (a pre-war hallmark, later switched to double-stitching during the war).
Custom-molded buttons with a diamond center and branded metal pocket buttons complement its tailored athletic fit, making it suitable for both work and leisure.


Details
Regular fit.
Point collar.
2 chest pockets, the left pocket with a flap.
Long sleeves with button cuffs.
Molded resin button, left chest pocket with alloy button.
Core-spun cotton yarn, stitched with triple stitching throughout.
10.5 oz cotton, 100% cotton.
Garment wash.
Machine washable.

inches
cm
SHOULDERCHESTLENGTHSLEEVE
3617.5"41.7"27.6"24"
3818.1"43.7"28.3"24.4"
4018.7"45.7"29.1"24.8"
4219.3"47.6"29.9"25.2"
4420.1"49.6"30.7"25.6"
image-data

  1. Shoulder to shoulder: Place the measuring tape at the corner of one shoulder and pull across to the other shoulder. This is an important measurement as some people typically wear the same size but have different shoulder widths.
  2. Chest width: Measure from the bottom of one armhole across the chest to the bottom of the opposite armhole.
  3. Length: Place the measuring tape in the middle of the collar and pull it down vertically to the bottom of the jacket.
  4. Shoulder to sleeve: Measure from the tip of the shoulder down to the bottom of the sleevent from above the elastic area same as Hem length measurement.
  5. Bottom Opening: Measure across from the side of the widest part at the bottom hem of the coat.
  6. ½ Biceps: Measure from the widest part of the sleeve (usually halfway between shoulder and elbow).

Sizes can vary from 2-3 centimeters because they are measured by hand. (1 inch=2.54 cm)
The size matched on a label can differ from the one you have ordered.