Iron Heart

Ultra Heavy Flannel Classic Check Work Shirt - Red

$299 $350



To a great extent, Iron Heart's ultra heavy flannel (UHF) shirts define Iron Heart: heavy, rugged, but amazingly wearable. This work shirt is an exclusive red 'classic check' 12oz fabric, woven with Aspero cotton from the foothills of the Andes mountains. They double brush it on the inside and single brush it on the outside, resulting in a very soft yet substantial, thick, warm and windproof flannel.


  • Made in Japan
  • Work shirt
  • Iron Heart original 12oz ultra-heavyweight red classic check cotton flannel
  • Aspero cotton
  • UHF (ultra heavy flannel)
  • Black cat's eye buttons 
  • Single brushed on face and double brushed on reverse
  • Single and double needle stitch construction
  • Orange bobbin thread and chain stitch run-off
  • One-washed - potential to shrink half a size with continual or very hot washing/tumble drying


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