Warehouse & Co. Lot 3104 Flannel Shirts (Pattern D) - Red (One Wash)Warehouse flannel shirts are made using power looms, which are only found in limited areas of Japan. The reason we use power looms to make flannel isn't simply to create "selvedge flannel"selvedge is merely a by product. The purpose is to use power looms to finish the fabric without losing the texture of the uneven yarn. Like denim, the yarn used to weave vintage flannel shirts was uneven in the past. Weaving this yarn with high tension on a modern