Lined Yukon Flannel Shirt Jacket, TanThe namesake flannel of Yukon, a resident muskox at the Alaska Wildlife Conservation Center. This flannel embodies the strength and warmth of Yukon's two layered coat as we constructed it out of a heavyweight cotton twill and lined with cotton flannel. This heavyweight flannel jacket has a soft brushed interior, you won't have to sacrifice comfort for durability. The Yukon comes equipped with two secure flapped chest pockets and two side seam pockets.