Durability with high functionality and comfort: Kajka 35 is an advanced trekking backpack that has been praised by hikers around the world. One reason is the FSC-certified birch wood frame construction, which, along with the easily adjustable back length, makes the Kajka a backpack designed to carry heavy loads, so you can focus on hiking rather than back pain. The ergonomic shoulder straps and lumbar support belt with pocket add even more functionality and comfort. Made of durable Vinylon F fabric with recycled nylon reinforcement fabric. Add more space to the Kajka 35 by attaching the Kajka side pockets to the loops on the sides; There are also loops on the front to attach trekking poles/ice axes. The main compartment has an internal mesh pocket and a full zippered front opening for easy organization and a great overview of contents. The top cover has three zippered pockets and can be detached and used as a shoulder bag. Two compression straps on each side provide uniform and effective compression while leaving the side pockets accessible. Compatible with the hydration system. Rain cover included.