The Salewa Alptrek 40 Trekking Backpack is designed for alpine multi-day routes: Not only comfortably light, the trekking pack is made from an abrasion-resistant nylon material and comes with a fully adjustable back support system with a 40 liter capacity. The easy-to-adjust Custom-Fit Pro back system includes an adjustable back length as well as anatomically shaped, padded shoulders and waist straps with a men's specific fit. In addition, load control straps allow optimum load distribution over long distances. The pre-shaped hip fin ensures a solid fitting and good load transfer to the hips. Large compartments provide plenty of space for extra clothing or tent poles. Access to the main compartment is possible both from both front and sides. Outer pockets are just perfect for items that need to be found quickly when you're on the go, without the need to remove the backpack. So many other features such as an outlet for a hydration drinking system, holders for both ice axe / hiking poles, rope carrier, load control and lateral compression straps as well as the possibility of stowing additional luggage (5 liters volume) under the detachable, height-adjustable lid make the Alptrek 40 a true mountain performer.