Ultra heavyweight flannel shirt (UHF) made from an exclusive Iron Heart designed red/black ombre checkered 12 ounce fabric woven from Aspero cotton from the foothills of the Andes. The inside is double brushed and the outside is single brushed, resulting in a very soft yet heavy, thick, warm and windproof flannel.
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.