Northern Hunting Womens Estrid Insulated Flannel ShirtNorthern Hunting Womens Estrid Insulated Flannel Shirt Estrid is a versatile flannel shirt with lining, perfect for year round use. Made from durable cotton flannel, it offers strength, breathability, and quietness. The brushed surface enhances insulation, while the warming lining provides extra comfort. To see more from Northern Hunting, visit the Northern Hunting Collection