100% cotton. Blanket flannel fabric. Full button fastening. Two chest pockets. Buttoned cuffs. Curved hem. Regular fit. Corridors winter shirts are a thing of beauty, and this Deep Forest Plaid Long Sleeve Shirt is no different. The fabric here is really something to write home about made from some ultra-heavyweight blanket flannel stuff, this is honestly one for the fabric fetishists. That el classico plaid design adds an aura of slickness that no good winter shirt should be without as well.