The Warren Six Season Flannel is a heavyweight, American-made shirt built with the details of traditional workwear and the craftsmanship of a premium flannel. Made from organic cotton grown, spun, and yarn-dyed in the USA, the diamond-twill fabric is woven at the American Woolen mill in Connecticut before each shirt is cut and sewn in East Boston, Massachusetts.
Double-needle stitching, carefully matched plaid, corozo buttons, and a hidden button-down collar speak to the attention given to every detail. Workwear-inspired chest pockets include a dedicated pencil slot at the left. Substantial enough for colder months but designed for year-round wear. Standard fit; true to size.








