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Iron Heart 275-BLK - Work Shirt - 12oz Selvedge Denim Johnny Cash Black
Iron Heart 275-BLK - Work Shirt - 12oz Selvedge Denim Johnny Cash Black

Iron Heart

275-BLK - Work Shirt - 12oz Selvedge Denim Johnny Cash Black


Garment Measurements | Virtual Size Chart


The Iron Heart IHSH-275-BLK Johnny Cash Black Work Shirt is a hardy, reinforced piece produced from a 12 oz. sanforized and rinsed Japanese Super-Black Selvedge Denim produced in Kojima, Japan to fade-to-gray after enough road trips and concerts. Using the signature Iron Heart Work Shirt pattern, this piece is perfectly proportioned in length to be worn untucked for modern, vintage-styled grit. Tonal stitching combined with this specialty black sulphur dyed warp and a reactive dyed black weft convey a clean aesthetic and provide the perfect palette for subtle fading and patina potential. This Work Shirt has numerous and carefully considered construction and design details like the squared shoulder and back yoke panel, which is paired with signature Iron Heart cats eye buttons on the front placket and dual patch front chest pockets with pencil slot, comprising a piece for the stylistically sound and self-reliant. Further, selvedge line reveals on the placket and cuffs, internal felled seams, and chainstitched construction with inseam run-off give this piece all the necessary heritage provenance, and then some. The Johnny Cash Black Selvedge Denim Work Shirt strikes the balance between classic and modern applications, making it a future heirloom, a year-round go-to, and a substantial staple piece that will only get better with wear. Built for the biker and over-engineered to start, the Iron Heart 275-BLK Work Shirt tests the limits of what actually can be artfully woven and sewn, delivering a lifetime of durability in a work-ready design.


  • Standard Fit
  • 12 oz. Super Black Fade-to-Grey Selvedge Denim
  • Sanforized - Rinsed
  • Red Selvedge Line
  • Black Sulfur Dyed Warp & Black Reactive Dyed Weft
  • 100% Cotton
  • Tonal Stitching
  • Dual Button Front Chest Pockets
  • Pencil Slot Chest Pocket
  • Back Yoke Panel
  • Interior Placket and Cuffs Selvedge Line
  • Button Cuffs
  • Black Cats Eye Buttons
  • Felled Seams
  • Chainstitched Throughout & Run-off
  • Bartack Reinforced
  • Made in Japan


Model Measurements: 5'11" | 165 lbs. | 40" Chest | 32.5" Waist - Wearing Size M

Iron Heart Shirting sizing is graded in small increments. The 275-BLK runs true to Iron Heart sizing and is made with a sanforized, rinsed fabric with most shrinkage removed. With regular use, one can expect up to .5-1” of stretch in the chest over the long term.

We recommend consulting our Sizing Guide and using our Virtual Size Chart.

Please feel free to Contact Us for additional assistance.

About Iron Heart

After 20 years of working in the garment industry in Japan, Shinichi Haraki established Works Inc a.k.a. Iron Heart in 2003 as a heavyweight Japanese clothing brand, initially aimed at the Japanese motorcycling community. Over the years and in partnership with the UK heritage community, the brand has become the pinnacle definition of bullet-proof garment construction. Originally made for bikers, Iron Heart pushes the design and construction of the clothing to the limit of what can actually be woven and... View All Iron Heart Products