Filson Vintage Flannel Work Shirt is a rugged, warm button-front shirt designed for fieldwork and everyday layering. Its brushed twill interior provides softness and thermal retention while durable construction stands up to regular use. Key attributes: Multicolor | Multicolore | Cotton twill | Warm | Breathable | Soft brushed interior | Durable construction | Button-front closure | Button-flap chest pockets | Button-adjustable cuffs | Shirt collar | Long sleeves | Two front flap pockets | Dual shoulder pleats on back yoke | Dimensions & fit: Regular fit | Composition & care: Cotton twill | Machine wash