Iron Heart
634S-SLBOD - Straight - 16oz Slubby Selvedge Indigo Overdyed Black
634S-SLBOD - Straight - 16oz Slubby Selvedge Indigo Overdyed Black
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Description
The Iron Heart IH-634S-SLBOD in Indigo Overdyed Black Slubby Selvedge Denim is an iconic cut, designed as a vintage-styled classic mid-rise Straight Tapered fit with a roomy seat, broad thigh, and a gentle tapered leg to a wide hem. This jean features Iron Heart's signature 16 oz. medium-weight, sanforized, and once-washed Slubby Japanese Selvedge Denim in an irregular low-tension weave using slub yarns of various weights. A new fabric within the Iron Heart collection, this 100% Cotton denim is woven via vintage shuttle looming using their signature dual twisted weft yarn method to add structure and a slub texture that softens to the body for a remarkable medium-weight denim that has a natural drape and retains its form through years of wear with unmatched durability and performance. Featuring a rope-dyed indigo warp and a white weft with a subtle grey cast, and given a garment overdye treatment with black direct dye, this steely charcoal jean will evolve into dark shades of blackened blues with subtle-to-high-contrast fade patterns over years of hard use. Finally, it's topped with an ultra-heavy natural vegetable-tanned embossed leather patch, heavy-duty twill pocket bags, embossed copper riveting on the front pockets, hidden rivets on the back, a button fly with interior selvedge detailing, and a chainstitched waist, seat, and hem. This garment will surely be a new classic, using signature IH details and fabric with a contemporary yet informed mid-rise straight tapered fit for the gent who lives his history in the present. Built for the motorcycle community and over-engineered to start, Iron Heart tests the limits of what actually can be artfully woven and sewn. The Iron Heart 634S-SLBOD in 16 oz. Slubby Indigo Overdyed Black has the supreme character to rival any in its weight class, yet it will knock out and ride over the competition with championed comfort and fading potential.
Specs
- Straight Tapered - 634 Fit
- Mid Rise, Roomy Seat, Broad Thigh, Tapered Leg w/ Wide Hem
- 16 oz. Japanese Low Tension Irregular Slubby Selvedge Denim
- Proprietary Fabric - Signature Denim
- Black Direct Garment Overdyed
- Sanforized - Once Washed
- Black Dyed Red Selvedge Line
- Double Twisted Weft Yarn
- Indigo Dyed Warp & White Weft
- 100% Cotton
- Zinc Button Fly
- Heavy-duty Cotton Twill Pocket Bags
- Tucked Belt Loops
-
Embossed Copper & Concealed Rivets
- Embossed Natural Cowhide Leather Patch
- Chainstitched Waistband, Seat, Inseam & Hem
- Bartack Reinforced
- Made in Japan
Sizing
Model Measurements: 6'2" | 175 lbs. | 42" Chest | 35" Waist - Wearing Size 34
The 634S-SLBOD runs on the small side of Iron Heart sizing, and we suggest sizing to your Actual Waist Measurement (Body/Belt). This piece is made with a sanforized, once washed, and overdyed fabric, and all shrinkage is removed. With regular use, one can expect up to 1” of stretch in the waist (Circumference) over the long term.
Our Method of measuring is different than Iron Heart’s and we recommend consulting our Sizing Guide when purchasing. We provide garment-specific measurements taken in-house, per Our Method, that are not duplicated across fabric or colorways and are re-measured each production run. Please feel free to Contact Us for additional assistance.
Iron Heart 634S-SLBOD - Straight - 16oz Slubby Selvedge Indigo Overdyed Black

Iron Heart 634S-SLBOD - Straight - 16oz Slubby Selvedge Indigo Overdyed Black
Specs
- Straight Tapered - 634 Fit
- Mid Rise, Roomy Seat, Broad Thigh, Tapered Leg w/ Wide Hem
- 16 oz. Japanese Low Tension Irregular Slubby Selvedge Denim
- Proprietary Fabric - Signature Denim
- Black Direct Garment Overdyed
- Sanforized - Once Washed
- Black Dyed Red Selvedge Line
- Double Twisted Weft Yarn
- Indigo Dyed Warp & White Weft
- 100% Cotton
- Zinc Button Fly
- Heavy-duty Cotton Twill Pocket Bags
- Tucked Belt Loops
-
Embossed Copper & Concealed Rivets
- Embossed Natural Cowhide Leather Patch
- Chainstitched Waistband, Seat, Inseam & Hem
- Bartack Reinforced
- Made in Japan
Sizing
Model Measurements: 6'2" | 175 lbs. | 42" Chest | 35" Waist - Wearing Size 34
The 634S-SLBOD runs on the small side of Iron Heart sizing, and we suggest sizing to your Actual Waist Measurement (Body/Belt). This piece is made with a sanforized, once washed, and overdyed fabric, and all shrinkage is removed. With regular use, one can expect up to 1” of stretch in the waist (Circumference) over the long term.
Our Method of measuring is different than Iron Heart’s and we recommend consulting our Sizing Guide when purchasing. We provide garment-specific measurements taken in-house, per Our Method, that are not duplicated across fabric or colorways and are re-measured each production run. Please feel free to Contact Us for additional assistance.
Collection: Iron Heart
After 20 years of working in the Japanese garment industry, Shinichi Haraki established Works Inc., a.k.a. Iron Heart, in 2003 as a heavyweight clothing brand initially geared toward Japan’s motorcycling community. Iron Heart creates classic and timeless clothing crafted out of the finest materials and achieves the highest standards by closely working with fabric development, garment manufacturing, and the brand’s cult community. Over the years, Iron Heart has become the definition of bullet-proof garment construction. Staying true to their slogan,...
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