Iron Heart IHSH-238-BLK - Black Crazy Check Ultra Heavy Flannel Work Shirt

The Iron Heart IHSH-238-BLK is truly almost crazy. One might think it's from the fun check pattern used in this ultra heavyweight flannel, and one would not be wrong. But what really makes this shirt almost crazy is the use of Aspero cotton - a naturally occurring wild cotton from the foothills of North East Peru. It's actually a tree (yes, a tree!) so it's one of the purest, most organic forms of cotton in the world. It cannot be mass produced and has been prized by the Peruvians for centuries for its softness, fineness, volume and strength.


  • Fabric single brushed on face, and double brushed on reverse
  • Black cat’s eye buttons throughout
  • Single and double needle stitch construction
  • Red bobbin thread
  • One-washed, but could shrink up to half a size with continual or very hot washing/tumble drying

What it's made out of

  • Iron Heart original 12oz ultra heavyweight black/multi-colour “crazy” check cotton flannel
  • Woven with Aspero cotton yarn

Where it's Made

  • Japan


  • Wash on cold and hang dry
  • This garment has been one-washed, but could shrink up to half a size with continual or very hot washing/tumble drying



Size Chest Length Sleeve Shoulder
S 21.1 27.6 24.7 17
M 21.1 28.1 25.2 17.8
L 22.4 28.8 26 18.4
XL 23.4 29.3 26.5 19.1
XXL 24 29.9 26.8 20


  • World-wide shipping via (UPS/Fedex/USPS/DHL). You will receive a tracking number via email.
  • $5 Flat Rate Shipping. Free shipping over $250 on domestic orders.
  • Orders shipped to an APO/DPO address are shipped via USPS.


  • We accept returns for full refunds within seven (7) days of the order delivery date.
  • Store credit for returns will be issued within fourteen (14) days of the order delivery.


  • We carry limited quantities of many items. To ensure an exchange can be fulfilled, contact us at

Please Note!!!

  • Franklin and Poe is not responsible for shipping costs on exchanges or returns.
  • We only accept items for return or exchange if they are in new condition with original tags, unworn and unaltered.
  • All merchandise purchased on sale, grooming products, underwear, and consignment are final.


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