To a great extent, the ultra heavy flannel (UHF) shirts define Iron Heart: heavy, rugged, but amazingly wearable. This work shirt is an exclusive navy 'classic check' 12oz fabric, woven with Aspero cotton from the foothills of the Andes mountains. We 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.
For this special edition, we’ve taken our red classic check work shirt and steeped the entire garment in black sulphur dye. As the fabric ages, the blackened appearance will slowly lighten, revealing more of the vibrant pattern and colours concealed within the weave.
Attention: The shirts have shrunk a bit due to over-dyeing and re-washing and are therefore a little tighter than the conventional Flannel Shirts. Please check the measurements before you order!
Measurements are specific to the product displayed on this page. The best way to determine your size is to measure a similar item that fits you well using the method shown in the "How we Measure" tab and compare with the size chart. Note that Iron Heart items of the same size can vary slightly. If a specific dimension (for example, arm length) is important to you, please ask us to check this by adding a note to your order.