Pure Blue Japan 17.5oz Natural Indigo AI-019 Denim (Relax Tapered Fit)

Many of you might have heard about "Natural Indigo Hand-Dyed" Japanese denim (a.k.a Aizome), today, we would love to introduce you to this highest-end natural indigo hand-dyed denim from PBJ for you to enjoy!

Compared with their standard indigo-dyed denim, this AI hand-dyed denim uses ultra-thick cotton thread to finish. Woven from old fashion shuttle looms at an even slower pace than usual. This process ensures the denim will hold its shape better and last longer than their other standard denim. Secondly, the texture of the denim will look even bolder and more uneven, with a vertical pattern resembling an “Indigo Waterfall"!

The natural indigo hand-dyeing process, is based on an over a thousand year-old tradition of skilful craftsmanship, which only a handful of artisans in Japan can finish perfectly, or we should say ---- MAGICALLY! To hand-dye these ultra-thick cotton threads in natural indigo, artisans have to choose the weather which is not too hot nor too cold, the humidity should be around 80%, and the artisans have to dye the cotton threads in natural indigo liquor very carefully to make sure the natural indigo colour is even and beautiful. Natural indigo does not contain the same chemicals found in standard indigo dyes that enable it to quickly and efficiently penetrate the cotton fibre. As such, the dyeing process has to be repeated around 50 times to make sure the natural indigo denim looks dark and ages with many hues of indigo with time!

Construction-wise, you can see the stitching is made of ultra-thick cotton threads to enhance its construction. In addition, PBJ asks their craftsman to hand-stitch select stress points and pockets areas! The colours of cotton threads that are used for stitching are also naturally hand-dyed, with wear and wash, they will age soulfully along with the natural indigo dyed denim!

To be honest, this is not the denim made for everyone... If you consider yourselves as some hardcore DENIM HEAD and looking for some Highest-end Japanese denim, these will open up your eyes!

  • 100% Cotton
  • Japanese 17.5oz blue selvage ID "waterfall" textured denim
  • Natural indigo is hand-dyed
  • Vegetable-tanned sheepskin leather patch
  • Copper buttons & pocket rivets
  • Hidden back rivets
  • Roped belt loops
  • PBJ "Leaf" Logo is embroidered on the left back pocket
  • Once washed (minimal shrinkage)
  • High rise/ Relax tapered fit
  • 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.