Iron Heart
431-BRN - Western - 12oz Slubby Heavy Flannel Brown Check
431-BRN - Western - 12oz Slubby Heavy Flannel Brown Check
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Description
The Iron Heart IHSH-431-BRN Western is produced in Japan from a 12 oz. Slubby Heavy Flannel with a heavily textured, unbrushed exterior for a rustic finish and a double-brushed interior to yield a soft hand on the body in a hardy fabric. A classic check in grey, navy, and orange on a dusty brown field updates a versatile retro palette with a traditional workwear pattern. For a fresh take on an icon, the newer slub yarn iteration of the classic Ultra Heavy Flannel provides flexibility and a textured, worn appearance in a dutiful and substantial fabric. Using the signature Iron Heart Western pattern of a slim fit based on the 1926 original, this shirt is perfectly proportioned in length to be worn untucked for modern, vintage-styled grit. This Western has numerous and carefully considered construction and design details, such as the triple-stitched curved shoulder and back yoke panels paired with signature Iron Heart black Permex snaps on the dual-flap front chest pockets, placket, and cuffs, making it ideal for the stylistically sound and self-reliant. Furthermore, internal felled seams and chainstitched construction give this piece all the necessary heritage provenance and then some. The Slubby Heavy Flannel Check Western strikes a balance between classic and modern applications, making it a future heirloom with endless applications from fall through spring. Built for the biker and over-engineered to start, the Iron Heart 431-BRN once again tests the limits of what can be artfully woven and sewn, delivering a lifetime of durability in a road-ready design.
Specs
- Limited Edition
- Modern Fit
- 12 oz. Japanese Slubby Heavy Weight Flannel
- Proprietary Fabric
- Once Washed
- Unbrushed Face & Double Brushed Interior
- 100% Cotton
- Point Collar
- Triple Stitch Front & Back Yoke Panels
- Snapped Flap Patch Chest Pockets
- Orange Thread Interior Chainstitching
- Dual Snapped Pleated Cuffs
- Black & Nickel Permex Snaps
- Felled Seams
- Chainstitched Construction
- Bartack Reinforced
- Made in Japan
Sizing
Model Measurements: 5'10" | 155 lbs. | 39" Chest | 32" Waist - Wearing Size M
Iron Heart Shirting sizing is graded in small increments. The 431-BRN runs true to Iron Heart sizing. This piece is made with a brushed flannel fabric and has been once washed. With regular use, one can expect up to .5-1" of shrinkage in the chest (Circumference) over the long term.
Our Method of measuring is different from Iron Heart's, and we recommend consulting our Sizing Guide when purchasing. We provide garment-specific measurements taken in-house, per Our Method, which 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 431-BRN - Western - 12oz Slubby Heavy Flannel Brown Check

Iron Heart 431-BRN - Western - 12oz Slubby Heavy Flannel Brown Check
Specs
- Limited Edition
- Modern Fit
- 12 oz. Japanese Slubby Heavy Weight Flannel
- Proprietary Fabric
- Once Washed
- Unbrushed Face & Double Brushed Interior
- 100% Cotton
- Point Collar
- Triple Stitch Front & Back Yoke Panels
- Snapped Flap Patch Chest Pockets
- Orange Thread Interior Chainstitching
- Dual Snapped Pleated Cuffs
- Black & Nickel Permex Snaps
- Felled Seams
- Chainstitched Construction
- Bartack Reinforced
- Made in Japan
Sizing
Model Measurements: 5'10" | 155 lbs. | 39" Chest | 32" Waist - Wearing Size M
Iron Heart Shirting sizing is graded in small increments. The 431-BRN runs true to Iron Heart sizing. This piece is made with a brushed flannel fabric and has been once washed. With regular use, one can expect up to .5-1" of shrinkage in the chest (Circumference) over the long term.
Our Method of measuring is different from Iron Heart's, and we recommend consulting our Sizing Guide when purchasing. We provide garment-specific measurements taken in-house, per Our Method, which 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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