Ultra Heavy Flannel Classic Check Work Shirt


  • Iron Heart original red/white ultra heavyweight classic check cotton flannel
  • Woven with Aspero cotton yarn
  • Fabric single brushed on face, and double brushed on reverse
  • One-washed
  • Cuff placket openings are reinforced with burgundy twill
  • Black cat's eye buttons throughout
  • Single, double and triple needle stitch construction
  • Orange bobbin thread
  • Model Sam wears Large, Giles wears X-Large (he normally wears Large)
  • When selecting your size, please check actual measurements you need. Please measure an existing shirt as per the guidelines under the "HOW WE MEASURE" tab above (do not simply go by tag size alone) and compare those with the detailed measurements for this model by clicking the "MEASUREMENTS" tab above

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All measurements are specific to this product. The best way to determine the size you need is to find a similar item that fits you well, then measure the same way we do (see "How We Measure" tab) and compare with the measurements on the table below. Actual measurements for the same Iron Heart item/tag size can vary somewhat so if a specific dimension is important to you (for example arm length) please ask us to check this before we ship by adding a note to your order. Measurements for raw denim garments are pre-soak (allowance must be made for shrinkage).


Chest (P2P)20.251.321.153.621.755.122.757.723.359.
Sleeve Opening4.210.74.310.94.511.44.611.74.711.94.812.24.812.2
You may need to move the above table left or right to see more sizes.

Red/White Classic Check - Face

100% Cotton

Single brushed on the face and double brushed on the reverse

Aspero is a naturally occurring wild cotton that is found in the foothills of North East Peru: being a tree it is not farmed and is one of the purest, most organic kinds of cotton available. As it cannot be mass-produced it has been highly prized for generations by the indigenous Peruvian population for its qualities of fineness, softness, volume and also strength

Red/White Classic Check - Reverse

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