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 7oz Rubber Wax Coated Windbreaker - Black - Iron Heart - URAHARA

Iron Heart 7oz Rubber Wax Coated Windbreaker - Black

$491.00 USD

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Size: Large

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Description

Originally designed with motorcyclists in mind, this mid-length windbreaker offers reliable protection against wind and rain without the weight of a traditional duck canvas. Made from a 7oz plain weave cotton known in Japan as "weather fabric," it features a dense weave with uneven weft yarns that enhance durability while keeping the jacket light and breathable.

The standout feature is its rubber wax coating—a blend of resin and latex that adds water repellency, wind resistance, and a subtle sheen. Finished with tonal detailing throughout, the jacket includes a two-way nickel YKK zipper under a snap-fastened placket, hand warmer pockets, ribbed storm cuffs, and a tonal Iron Heart chest print. A refined take on the classic windbreaker silhouette, built with Iron Heart’s signature over-engineering.

- Iron Heart 7oz Rubber Wax Coated Windbreaker.
- IHJ-145-BLK.
- Black colourway.
- 7oz weather canvas with rubber wax finish.
- Resin and latex coating for water resistance and windproofing.
- Classic windbreaker silhouette.
- Two-way YKK zipper under snap-fastened placket.
- Ribbed elastic collar and tubular knit storm cuffs.
- Snap-fastened hand warmer pockets.
- Hemline drawstring for adjustability.
- Tonal Iron Heart chest print.
- Tonal stitching.
- Internal felled seams.
- Single and double needle construction.
- Poly/cotton thread for durability.
- Made in Japan.

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This windbreaker strikes a smart balance between function and style. Designed originally for motorcyclists, the 7oz weather fabric is lightweight yet durable, with a rubber wax coating that offers solid water resistance and windproofing without the bulk of heavier canvas jackets. The subtle sheen and tonal detailing keep the look clean and understated.

We appreciate the practical touches like which make it easy to wear in changing conditions. The fit is classic and streamlined, making it just as at home on the street as it is on a ride. A refined, well-made jacket that performs without fuss.

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