What is Iron Heart denim

Iron Heart is a Japanese brand founded in 2003 by Shinichi Haraki, a former designer at Edwin. The brand specializes in ultra-heavyweight selvedge denim, often ranging from 14oz to 25oz, designed to withstand the rigors of motorcycle riding. Their garments are crafted with meticulous attention to detail, combining traditional Japanese techniques with durable materials

How does Iron Heart's denim compare to other Japanese brands

While brands like Kapital and Visvim focus on avant-garde designs and cultural narratives, Iron Heart emphasizes durability and functionality. Their denim is known for its weight and resilience, appealing to those seeking robust, long-lasting garments

How does Iron Heart's sizing compare to other brands

Iron Heart's sizing can differ from other brands, often running slightly smaller. It's recommended to consult their detailed sizing charts and consider sizing up if you're between sizes

What’s the best way to care for heavy denim

Wash infrequently, air dry, and spot clean as needed. For example, Iron Heart recommends turning jeans inside out and washing in cold water to preserve indigo and fabric strength

Can I wear heavyweight jeans in warmer weather

It depends on your tolerance, but many enthusiasts wear 14oz–17oz denim year-round. Iron Heart offers “lighter” heavyweights like 14oz and 17oz for summer wear, with breathable weaves and soft feel after break-in

What’s the difference between sanforized and unsanforized denim

Sanforized denim is pre-shrunk, while unsanforized denim can shrink significantly after the first wash. Iron Heart typically uses sanforized denim, offering consistent sizing and minimal shrinkage, which makes fit selection easier

What does 'one wash' denim mean

“One wash” refers to denim that’s been lightly rinsed to remove shrinkage. Iron Heart offers both raw and one-wash options, depending on whether you want to shrink your jeans yourself or get closer to final fit from the start

Iron Heart 9oz Cotton Linen Work Shirt - Black - Iron Heart - URAHARA

Iron Heart 9oz Cotton Linen Work Shirt - Black

$378.00 USD

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Size: Medium

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Description

Lightweight by Iron Heart standards, this 9oz work shirt blends the brand’s signature durability with warm-weather comfort. Made from a breathable cotton-linen fabric woven in a left-hand twill, it offers a softer feel and better airflow without sacrificing toughness.

Cut in Iron Heart’s classic work shirt silhouette, it’s triple-stitched at the major seams and reinforced with chainstitch runoff at the gussets—a build designed to go the distance. Finished with tonal hardware and utility-focused details throughout.

- Iron Heart 9oz Cotton Linen Work Shirt.
- IHSH-414-BLK
- Black colourway.
- Reactive dyed - retains colour over time.
- Triple-stitched side, sleeve, and shoulder seams.
- 9oz left-hand twill (90% cotton, 10% linen).
- Classic work shirt cut with straight back yoke.
- Dual patch pockets with pen holder.
- Side seam gussets with chainstitch runoff.
- Felled internal seams.
- Tonal four-hole buttons.
- Once washed – no shrinkage expected.
- Made in Japan.

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This shirt is a great pick if you want something durable but breathable for warmer days. The cotton-linen blend and left-hand twill weave give it a softer hand and better airflow compared to heavier shirting, while still feeling sturdy enough for everyday wear.

The classic work shirt cut is comfortable and functional, with triple-stitched seams and chainstitch gussets built for longevity. The Black colour is classic, making it easy to style with everything from denim to fatigues. It also softens nicely with wear, adding to its appeal as a reliable wardrobe staple.

Shipping Information

Same day shipping with tracking information.
Shipments arrive within 5-7 business days anywhere in the world.
Orders over $500 AUD activate free worldwide shipping.

14 Days Returns

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United States duties, custom's fees and taxes are covered by us. The price you pay at checkout is the final price.

Iron Heart 9oz Cotton Linen Work Shirt - Black