Flimsy flannel has no place at Duluth – that’s why our Heritage-Weight Flannel was built with extra heft and hardiness. A whopping 12-oz. 100% cotton is extra thick, durable and double-brushed for softness that will swaddle you silly. Underarm gussets give you freedom of movement, while 4 generously-sized pockets let you stash your stuff. Shirttail shammy is even bigger with more fabric to shine up those specs and phone screens. They don’t make flannel like this anymore, so we had to!