Boncoura 15oz '66' Black Denim (Narrow Straight Fit)

Size Guide
To celebrate their 9th anniversary, Boncoura have created an amazing new version of their famous 66 denim. This ’66’ fit has a comfortably mid-high rise, comfy thigh and slightly tapered leg opening. Inspired by vintage Levis denim, these are created as if real vintage denim never ended in the 60s.

This special release is seriously not like any typical black or double indigo dyed denims! These are created with a specially developed technique!

First off, the cotton threads are pure indigo dyed, then these threads are ‘Sumi-Overdyed’ using tree bark. This makes it different from all the double indigo that looks black. Instead the sumi tree bark overdyed on top of pure indigo dye threads creates a true black that has amazing fades into indigo, see the pictures for some fade samples! The white weft allows for high contrast fades so you will not be left with a dirty fade.

For hardcore vintage denim fans who are looking for some perfect black denim, this is something to enjoy with time!

  • 100% Cotton
  • Japanese 15oz light purple selvage ID smooth & uneven textured denim
  • Pure grand indigo thread dyed then Sumi overdyed warp
  • Iron buttons
  • Copper rivets
  • Ultra thick natural tan deerskin leather patch
  • Japanese medium weight HBT inner pockets (specially developed by Boncoura)
  • High rise/ Narrow Straight fit
  • Made In Japan

NOTES: The denims are unsanforized which will shrink 3 ~ 6% with washes:

Cold Soak: 0.5'' in the waist ; 1'' in the inseam
Warm Soak/Cold Machine Wash: 1'' in the waist ; 1.5'' in the inseam
Warm Machine Wash: 1.25'' in the waist; 2'' in the inseam

For those with the budget, they’ve also designed a special ‘Denim Wash’ to unleash perfect ageing! Grab yours here

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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.