Samurai 13oz Indigo Dyed Heavyweight Flannel Early Workshirt Overseas Edition (Indigo X Orange)

Heavyweight like Sumo, looking sharp like Katana!

This specially developed 13oz heavyweight flannel is woven from a re-constructed vintage denim machine which comes with some stiffness like raw denim, the dark navy colourway is grand indigo thread dyed, with wear and wash, you will expect some high contrast ageing look like Samurai's standard denim and the interior will become softer and more comfortable!

This design is inspired by 1920s early workshirt patterns, featuring extra elbow panels for durability. Fitting wise, this is the newest 'Overseas Edition' that comes with a longer vertical length and fits more fashionable!

Looking for the finest in heavyweight flannel? Why not give Samurai's a try!

  • 100% Cotton
  • Japanese 13oz heavyweight flannel (specially developed by Samurai)
  • Grand indigo is yarn-dyed
  • Urea buttons
  • Japanese lightweight cotton twill lined collar & cuffs
  • Once washed (minimal shrinkage)
  • Chain-stitching Construction
  • Slim fit (Oversea Edition)
  • Made In Japan

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How We Measure

Pants and Shorts


With the major buttoned up open the jeans and lay them flat like shown. Measure from the front where the major button closes to the back belt loop. Then double this measurement to achieve the waist measurement.

The way we measure is different from 'Side to Side', If you are not used to our method you should downsize by 1 inch.

For example, side to side measurement for The Flat Head 3002 waist is 28inch and using our method 29.25 inch.

Front Rise:

With the jeans lying flat measure from the crotch bar tack to the top of the waistband. 

Back Rise:

Spread out the crotch so the bar tack is visible, then measure from the crotch to the top of the waistband.


One inch down from the crotch measure flat across to the other side.


Flatten the leg and measure along the inseam from the crotch to the leg hem. 

Leg Openning:

Measure straight across the hem from side to side.



Lay flat then measure from the shoulder's edge to the other shoulder's edge.


Lay shirt flat and measure from pit to pit.

Sleeve length:

With the sleeve flat measure from the shoulder to the cuff.

Arm hole openning:

Measure from the shoulder down to the pitt.

Vertical length:

With the shirt facing down, Measure from below the collar to the bottom hem.