Iron Heart 555-XHS 25oz Denim (Slim Tapered Fit)

Size Guide

We always try to extend our denim collection and here we are with the latest heaviest denim - Iron Heart 555-XHS.

Using a 25oz extra heavy Japanese selvedge denim custom made by Iron Heart, this is also the heaviest that Iron Heart has ever produced. For this kind of heaviness, denim artisans have to wear protective glasses when they sew them in case the needles explode.

Not just a thick on fabric, the colour is deeper as well, 555-XHS goes with a ultra deep indigo dye that you will experience more layer of indigo colour through wearing.

The denim is in a classic 555 slim tapper fit to give you a modern look. For those denim-heads who haven't experienced the toughness of 25oz, we will highly recommend!

  • 100% Cotton
  • Japanese 25oz ultra heavy blood selvage ID Iron Heart signature denim (the texture is smooth but much unevened compares with 21oz signature denim)
  • Grand indigo dyed
  • "Iron Heart" iron buttons
  • Hidden back rivets
  • Ultra thick cowhide leather patch
  • Selvage Fly construction
  • Cotton twills linings in back pockets
  • Poly/Cotton stitchings
  • Mid rise/Slim Tapered fit
  • Made In Japan
NOTES:The denims are sanforized, however, they still remain less than 3% shrinkage with different ways of soakings/washings.

Cold Soak: 0.5'' in the waist ; 0.75'' in the inseam
Warm Soak/Cold Machine Wash: 0.75'' in the waist ; 1'' in the inseam
Warm Machine Wash: 1'' in the waist ; 1.5'' in the inseam

Related Items

How We Measure

Pants and Shorts


With the major buttoned up (i.e. the top button) open the jeans and lay them flat, like shown. Measure from the front where the major button closes to the back belt loop. Double this measurement to find the waist measurement.

The way we measure the waist is different from the 'Side to Side' technique. If you are used to the 'side to side' technique you can roughly roughly downsize by 1 inch.

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

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.