With Tree-Kånken, Fjällräven explored alternatives to fossil raw materials. Made from Pine Weave, a unique fabric produced using more sustainable methods from Sweden-certified wood raw material. The material is waxed, giving it a natural melange effect. The backpack combines Kånken's simplicity with carefully modified details that give Tree-Kånken its identity: reflective logo, flat front pocket and a strap for attaching tools underneath.