The ultra-heavy duty (UHF) flannel shirts largely define Iron Heart, they are heavy, tough, yet amazingly wearable. This work shirt is an exclusive 12oz green ombre check fabric woven from Aspero cotton from the foothills of the Andes. It is double brush on the inside and single on the outside, resulting in a very soft yet strong, thick, warm and windproof flannel.

Notice: The image provided is a mockup. Full photography will be provided once the product is delivered.

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• 12oz Japanese ultra-heavyweight flannel - Green ombré check
• 100% Aspero cotton
• Cheese dyed (direct dye) 
• Fabric single brushed on face and double brushed on reverse
• Tonal stitching
• Black cat's eye buttons 
• Classic patch pockets with button fastenings and pen holder
• Single and double needle stitch construction
• Straight back yoke
• Felled internal seams
• Side seam gussets with chainstitch run-off
• Gold bobbin thread
• One-washed, but could shrink up to half a size with continual or very hot washing/tumble drying
• Made in Japan