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