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Iron Heart 332-SAX - Western - 14oz Ultra Heavy Flannel Anniversary Check Sax
Iron Heart 332-SAX - Western - 14oz Ultra Heavy Flannel Anniversary Check Sax

Iron Heart

332-SAX - Western - 14oz Ultra Heavy Flannel Anniversary Check Sax


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Garment Measurements | Virtual Size Chart


The Iron Heart IHSH-332-SAX Western commemorates the brands 20th Anniversary with a limited release hallmarking their first IHSH-01 Ultra Heavy Flannel, produced in a 10 oz. fabric which was the max weight that Iron Heart could originally cut and sew, and overdyed to a 12 oz. weight. This up-production re-imagines the original using the now cult-classic 12 oz. Ultra Heavy Flannel that is overdyed in a pale grey to a 14 oz. weight, the heaviest produced to date. This UHF Western maintains the double brushed interior to yield a soft hand in an extremely hardy fabric with a classic check in red, khaki, and grey on a pale blue field, both honoring and updating the archived pattern and palette. Made from a rare Aspero wild and organic cotton plant found only in the foothills of Northeast Peru, the yarn yields remarkable softness and an unmatched strength and has been treasured by the area’s indigenous population for generations. 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 like the triple stitched curved shoulder and back yoke panels, which are paired with signature Iron Heart black Permex snaps on the dual flap front chest pockets, placket, and cuffs to make a piece for the stylistically sound and self-reliant. Further, internal felled seams and chainstitched construction give this piece all the necessary heritage provenance, and then some. The Ultra Heavy Flannel Anniversary Check Western strikes the balance between classic and modern applications, making it a future heirloom with endless fall through spring applications. Built for the biker and over-engineered to start, the Iron Heart 332-SAX once again tests the limits of what actually can be artfully woven and sewn, delivering a lifetime of durability in a road-ready design.


  • 20th Anniversary Limited Release
  • Modern Fit
  • 14 oz. Ultra Heavy Weight Flannel
  • Peruvian Organic Cotton Aspero Yarn
  • Once Washed
  • Pale Grey Overdyed
  • Single Brushed Face & Double Brushed Interior
  • 100% Cotton
  • Gold Thread Interior Chainstitching
  • Dual Snap Front Chest Pockets
  • Triple Stitch Front & Back Yoke Panels
  • Dual Snap Cuffs
  • Black & Nickel Permex Snaps
  • Felled Seams
  • Chainstitched Throughout
  • Bartack Reinforced
  • Made in Japan


Model Measurements: 6'0" | 170 lbs. | 39" Chest | 32.5" Waist - Wearing Size L

Iron Heart Shirting sizing is graded in small increments. The 332-SAX runs on the small side of Iron Heart sizing and is made with a once washed, once overdyed, and brushed flannel fabric. With regular use, one can expect up to .5-1” of shrinkage 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