Advanced trekking backpack that is extremely comfortable to carry with smart functions. Support system with Perfect Fit adjustment and main compartment with Wet/Dry areas. Durable, comfortable and loaded with functions despite its fairly modest appearance, Kajka is an advanced trekking backpack in the classic Fjallraven spirit. The generous hip belt offers a high degree of carrying comfort on long hiking days. Outer material: 600D polyester, Vinylon F: 100% vinylal.