A naturally warm shirt thanks to the carefully crafted wool and nylon blend, is completely durable and rustic. The Filson Northwest Wool Shirt has stolen our hearts due to its classic print and high qualities details that we know will give you years of use. Features Wool / Nylon Blend Naturally warm / Durable Center back pleat for freedom of motion Feather Cloth-lined collar stand, back yoke and placket Full Button closure