Iron Heart 19oz 555S-19L Denim (Slim Tapered Fit)

Size Guide
Leftie fans rejoice!

This latest offering from Iron Heart is a heavyweight 19oz Left-hand twill denim, which is unlike any we have seen! Due to the slow weaving process on vintage shuttle looms, the texture of denim is stiffer and smoother on the surface than regular right-hand twill denim. with wear and wash, this denim will fade with a strong vertical texture, revealing a beautiful multi-hued indigo look!

Construction-wise this pair has been given the classic Iron Heart treatment! Heavyweight cotton twill has been used for the pocket bags, as well as lining on the back pockets to ensure they remain durable for many years to come! Iron doughnut buttons have been used for the fly, as well as hidden back pocket rivets for added durability! The red selvedge I.D has been incorporated into the fly construction and coin pocket for some added tasteful details!

If you are looking for a pair of classic left-hand twill denim with next-level construction and amazing details, Iron Heart's 19oz LHT denim could be a perfect choice!

  • 100% Cotton
  • Japanese 19oz red selvage ID left-hand twill 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
  • Once washed (minimal shrinkage)
  • Mid-rise/Slim Tapered fit
  • Made In Japan

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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.