Made with warm cotton flannel, this classic shirt has set the standard for outdoor comfort for nearly 30 years. The fabric is tightly woven for durability and wind resistance, and brushed on both sides for next-to-skin comfort. Ideal over a tee in cool weather, as an overshirt on summer evenings, or layered under a vest when the temperature drops, it's a go-to favorite throughout the year. Button-flap chest pockets. Embroidered Filson logo.