Maru Sankaku Peke by SDA 13oz Patchwork Type 2 Denim Jacket

The soul of vintage type-2 reborn!

This season we would like to introduce you to SDA's special project 'MARU SANKAKU PEKE' aka OAX.

This jacket uses a combination of vintage fabrics and SDA's own specially developed denim fabric to create a truly unique garment!

The 'diamond-like' patchwork pattern on the yoke and sleeves has been skilfully hand-cut and sewn using Japanese indigo-dyed fabric from a variety of vintage denim. Each pattern will be slightly different to the next resulting in a jacket with some truly unique vintage soul! For the rest of the jacket body, SDA has chosen a sky-blue, vintage indigo, 13oz orange colour selvedge ID denim. Unlike many other brands producing pre-distressed denim, SDA has skilfully controlled the ageing process to create a pre-faded denim jacket indistinguishable from vintage worn-in pieces!

The construction features a combination of single-needle and chain stitching for added durability while the unpolished iron doughnut buttons add to the vintage charm of this garment.

The design has been inspired by classic type 2 jackets worn by cowboys and workmen of the past. SDA have retained the short vertical length and comfortable chest dimensions to make up for a relaxed vintage fit!

If you are looking for a type 2 denim jacket with amazing design and original vintage fabrics, SDA's latest creation could be the perfect one!

  • 100% Cotton
  • Japanese 13oz orange colour selvage ID denim
  • Twin chest pockets
  • The shoulder & elbows are patched with a variety of vintage denim
  • Silver coated iron buttons
  • Adjustable waistband
  • Slim fit
  • Once Washed (Minimal Shrinkage)
  • 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.