Fjallraven Singi Heavy Flannel Shirt - Men's Chalk White-Dark Navy Extra Large. Made from soft cotton flannel with G-1000 reinforcements on the inside of the collar sleeve cuffs and pocket flaps. Two chest pockets with pen holders. The sleeves can be rolled up and kept in place with a button. Specifications for Fjallraven Singi Heavy Flannel Shirt - Men's: Manufacturer: Fjallraven Age Group: Adults Apparel Fit: Regular Gender: Male Features of Fjallraven Singi Heavy Flannel Shirt - Men's Breathable Button down collar Roll-up sleeve function Heavy cotton flannel shirt in regular fit Package Contents: Fjallraven Singi Heavy Flannel Shirt - Men's Fjallraven F81373-113-555FR-XL: Singi Heavy Flannel Shirt - Men's Chalk White-Dark Navy Extra Large