Patagonia Lightweight Insulated Fjord Flannel Shirt William / Smolder Blue. This garment is made from 100% organic cotton flannel and has ThermoGreen insulation, ideal for keeping you warm when temperatures drop. It has two chest patch pockets and two side pockets to give it the look of a jacket. The bottom of the garment is also straight, adapting to all styles. FEATURES Standard cut Chest pockets with buttoned flap Side pockets Straight bottoms Full-length fastening tab Main materials: 100% Cotton flannel Insulation: ThermoGreen 100% Recycled polyester Lining: 100% OceanCycle certified polyester PFC-free DWR water-repellent and durable treatment Chest – 23” Length – 31”