Iron Heart's classic work shirt, constructed from a 9oz cotton/linen fabric. Woven with a traditional left-hand twill, the 90% cotton / 10% linen blend creates a softer, more breathable cloth while maintaining the rugged characteristics expected of an Iron Heart fabric. This results in a hardwearing yet comfortable shirt that provides excellent ventilation throughout the warmer seasons. With features including button fastenings, a chest pocket pen holder, and side seam gussets with chain stitch runoff, this model bears all the hallmarks of a work shirt cut—with additional triple-stitched side, arm and shoulder seams for enhanced durability.

• Made in Japan
• Work shirt
• 9oz cotton / linen left-hand twill
• 90% cotton / 10% linen
• Reactive dyed warp and weft - no colour loss to be expected
• Tonal stitching and bar tacks
• Tonal four-hole buttons
• Classic patch pockets with button fastenings and pen holder
• Single, double and triple needle stitch construction
• Straight back yoke
• Felled internal seams
• Side seam gussets with chainstitch run-off
• Red bobbin thread
• One-washed - no shrinkage expected