Sullen Flannels for men are perfect for fall, and even summer, weather. They are available in two weights: light for warmer weather and heavy for colder trips to the tattoo shop. Our mens plaid flannel shirts are custom designed from scratch and are made each season to complement our hats and tees with colors and patterns that are meant to be worn together. Choose your favorite style and discover your new favorite. Sullen soft woven flannels for men are 100% cotton.