Our heaviest-weight flannel, now in stripes. Made of thick chamois fabric that's warmer than ordinary flannel, it's a shirt, light jacket and essential layer all in one. Traditional Fit: Relaxed through the chest, sleeve and waist. Designed with extra room for layering. 7.5 oz. Portuguese cotton flannel. Expertly brushed eight times on each side for exceptional softness. Machine wash and dry.