Filson Insulated Flannel Shirt pairs a soft, double-brushed cotton flannel with a quilted polyester insulating layer for reliable warmth and comfort in cool conditions. Key attributes: Blue | Multicolore | Cotton flannel | Insulating quilted layer retains heat | Exceptionally soft hand | Button-front closure | Chest pockets with flaps and buttons | Welt hand-warmer pockets | Curved hem | French collar | Brushed finish on both sides | 5 cm square quilting pattern | Composition & care: Cotton (brushed flannel) | Polyester (quilted insulating layer)