What in the world has happened to men's flannel shirts? It's like a good classic flannel shirt is an endangered species! So we went to work. Our 100% cotton Free Swingin' Flannel is a hearty 5.6 oz. for durable wear and extra comfort. We brush it twice for extra loft and softness, and give it a prewash, so it resists shrinkage. It has Reach Gussets™ so you can bust axe with Free Swingin' ease. A button-down collar means you can wear it under a sport jacket (which guys in Duluth actually do – some of them even get married in flannel!).