Fjallraven says about the Singi Flannel Shirt Long Sleeve
Timeless long-sleeved flannel shirt in functional wool/cotton blend. The material combines the insulating and moisture transporting properties of wool with the soft feel of cotton. Comfortable when trekking and just as suitable to wear afterwards at the mountain station, or for forest outings close to home. Comfort fit with bellow pleats in the back for extra freedom of movement. Chest pockets with flaps. Sleeve buttons keep rolled up sleeves in place.