Sup, denim heads! Today, we're diving deep into the world of Iron Heart, the absolute beast of a Japanese denim brand that's been killing it since 2003. If you're looking for some seriously heavy-duty, built-to-last denim that'll make you feel like a badass, keep reading.

So, here's the dealio: Iron Heart was founded by Shinichi Haraki, who initially set out to create denim for the Japanese motorcycle crowd. You know, the kind of people who need their jeans to withstand some serious wear and tear. And boy, did Haraki deliver.

Iron Heart's denim is no joke, with weights ranging from a hefty 18oz to a mind-blowing 25oz. They use a mix of American and Zimbabwean cotton to create the perfect blend of durability and texture.

But it's not just about the weight, folks. Iron Heart is all about that old-school craftsmanship. They use vintage sewing machines and traditional construction methods to ensure every pair of jeans is built to perfection. With a variety of fits like straight, slim straight, tapered, and boot cut, there are Iron Heart jeans for every body type and style.

Now, let's talk about some of their signature pieces.

First up, the 21oz denim. This is Iron Heart's flagship product, and for good reason. It's insanely durable and fades like a dream.

Then there's the Ultra-Heavy Flannels, which are so thick and warm, you'll feel like you're wrapped up in a cozy blanket. And don't even get me started on their loopwheeled t-shirts – they're made using vintage machines that give them the softest, most comfortable feel ever.

Iron Heart isn't just a one-trick pony, either. Over the years, they've collaborated with some seriously cool brands and artists, like The Flat Head, Studio D'Artisan, and even Primal Scream. These collaborations always bring something fresh and unique to the table, making them instant collector's items. Iron heart is also banging out some of the sickest jackets going. From military-grade reproductions of the M65 to these leathers, you can really get your jacket on with these boys.

Oh, and did I mention that Iron Heart is all about that durability life? By creating products that are built to last, they're encouraging a more eco-friendly approach to fashion. Sure, their stuff might come with an above-average price tag, but this is cortis.com, not iwearcheapstuff.com, and it's worth every penny.

So, there you have it, folks. Iron Heart is the realio dealio when it comes to top-notch denim, etc. Just remember, if you want to keep your Iron Hearts looking fresh, wash 'em sparingly, avoid the dryer like the plague, and let 'em air dry. Trust me, your jeans will thank you.

Now, if you'll excuse me, I'm gonna go put on my Iron Hearts and start breaking em' in like the bosses' boss. Catch you on the flip side, denimheads!

Iron Heart IHJ-128-BLK Japanese Horsehide Double Motorcycle Jacket - Black
The IHJ-128 is a Double Motorcycle Jacket of an Iron Heart original design. Made of a premium vegetable tanned horsehide, this leather is pigment dyed and sourced from Himeji, the tanning capital of Japan. As the pigment wears off, the natural leather will show through creating a unique patina. The design of the jacket
Iron Heart 888S 21oz Denim (Straight Tapered Fit)
If you want super strong contrast denim ageing you’ve got to try some heavy ounce denim! Some maybe scared of the weight and rigidity but this aint an issue with these 888S denims from Iron Heart! As one of the most famous heavy weight denim brands, Iron Heart have created a brand another pair of denims for those who l
Iron Heart - 21oz 888s High Rise Tapered Cut Jeans Indigo
The popular cut from Iron Heart is in. High rise relaxed taper jean made from their signature heavy yet soft 21oz indigo selvedge denim. A great cut for people with larger thighs. Made in Japan Relaxed tapered cut Medium/High rise 21oz rope dyed indigo warp, natural weft Japanese selvedge denim Woven with a double tw
Iron Heart - Ultra Heavy Flannel Blanket Check Western Shirt Sax Blue
Iron Heart’s UHFs (Ultra Heavy Flannel) take the classic flannel to another level. This western shirt in Sax Blue is heavy, soft, and seriously durable. Woven from Apsero cotton which is only found in the foothills of the Andes in Peru. Double brushed on the inside for immediate comfort. Made in Japan Western shirt Ir
Iron Heart Ultra-Heavy “Slubby” Flannel Classic Check Western Shirt (Battleship Grey)
Back again! Here we have some of the best flannels!Corlection is proud to show off the Iron Heart Ultra-Heavy-Flannel Classic Check in a Battleship Grey colourway. Just in time for the season, with all the staple Iron Heart features and quality you know and love! Famous for its heavyweight construction, Iron Heart’s fl
Iron Heart - Ultra Heavy Flannel Classic Check Work Shirt Red
Iron Heart’s UHFs (Ultra Heavy Flannel) take the classic flannel to another level. This classic work shirt in Red is heavy, soft, and seriously durable. Woven from Apsero cotton which is only found in the foothills of the Andes in Peru. Double brushed on the inside for immediate comfort. Made in Japan Work shirt Iron
Iron Heart - 12oz Selvedge Denim Western Shirt Indigo
An Iron Heart staple - their classic western shirt made from one washed 12oz indigo Japanese selvedge denim. With black IH permex snaps and gold contrast stitching. Put this piece to work and it will age beautifully over time.IHSH-33-IND Made in Japan Western shirt 12oz Japanese selvedge denim Indigo rope dyed warp / n
Iron Heart IHSH-382-PUR 9oz Selvedge American Check Work Shirt - Purple
Iron Heart’s classic work shirt silhouette in a 9oz selvedge unbrushed cotton flannel. Featuring a 1970s era “American Check” pattern, this flannel features contrasting shades of indigo, blue and yellow. The yarns have been reactive dyed with a newer technique that allow the colors to evolve and fade over time and wear
Iron Heart 10oz Herringbone Twill Work Jacket (Brown)
Let’s get to work!Inspired by vintage workwear garments from various regions of the world, IH has created their own ‘fusion’ vision for a modern Worker’s jacket. The outer shell is made from a 10oz thread-dyed HBT fabric made on vintage machines. The vertical texture is subtle but will become exaggerated with use and w
Iron Heart - 10oz TC Duck Modified Type III Jacket Brown
Iron Heart’s modified take on the classic Type III trucker jacket - slightly longer body, and handwarmer pockets. This jacket is made from 10oz tetoron cotton Japanese duck canvas. Woven from a 65/35 poly-cotton blend, the warp and weft yarns have been aggressively twisted to create a crisp, tight weave which is both l
Iron Heart IHSH-384-WHT 13.5oz Cotton Twill Western Shirt - White
The classic Iron Heart Western now comes in a 13.5oz white denim, with an open-ended 70s/80s style fabric. This shirt goes all-in on white, with heavy-duty pearl snaps, tonal stitching, and white bobbin thread with a chainstitch runoff. This shirt can be saved for the very special occasions, but it’s also meant to have
Iron Heart IHSH-287-RED Micro Fleece C.P.O Shirt - Red
Iron Heart CPOs exemplify the greatness of Iron Heart. Heavy, over-engineered, unique, top-of-the-line fabric and hardware, beautifully constructed, fits incredibly well, and guaranteed compliments whenever you stop by your local delis. The IHSH-287 CPO is made of recycled polyester fleece in a true red. This CPO featu
Iron Heart “Bell” Print Bandana- Red
100% cotton selvedge bandana, featuring an Iron Heart original paisley “Bell” design. The complex design has been discharge printed - a technique that removes the dye from a piece of cloth - ensuring that the intricate details within the pattern will remain clear and prominent as the fabric ages. Made in Japan 100% cot
Iron Heart IH-634S-B 21oz Selvedge Denim Straight Cut Jeans - Indigo Overdyed Black
The IH-634S is Iron Heart’s signature jean in their world famous 21oz fabric, and given an overdye in sulfur black dye. This jean features super heavy 21oz denim that is so soft it feels much lighter because of it’s loose weave. The break-in of these jeans is easy, despite the weight and heft of the denim. The 634 cut
Iron Heart IHTL-1213-IND Waffle Knit Long Sleeved Thermal Henley - Indigo Dyed
This Iron Heart thermal is here to keep you nice and warm. Made of a soft, yet substantial 100% cotton waffle knit, these thermals are finished with 4 needle flat seam construction and chainstitch runoffs on the sleeves and hem. This version has been indigo dip dyed, and will fade over time and wear.
Iron Heart - 12oz Dobby Cloth CPO Shirt Indigo
An incredible shirt from Iron Heart. Western style pocketed CPO shirt made from 12oz dobby cloth with Sashiko thread stitching. Deep texture, with a soft hand feel. The warp threads are indigo dyed and will fade beautifully over time, while the weft yarns and sashiko thread will not fade. The combination will make for
Iron Heart IHJ-128-BLU Japanese Horsehide Double Motorcycle Jacket - Blue
The IHJ-128 is a Double Motorcycle Jacket of an Iron Heart original design. Made of a premium vegetable tanned horsehide, this leather is pigment dyed and sourced from Himeji, the tanning capital of Japan. As the pigment wears off, the natural leather will show through creating a unique patina. The design of the jacket
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