Hiking backpack Explorer 100 is ideal for longer treks. A big plus of this backpack is the adjustable back system that copies the back and evenly distributes the weight. The backpack lid can be removed and used as a waist bag or shoulder bag. The waist belt and chest strap with whistle are also removable. It is equipped with a separate pocket for hydration system with outlet on the shoulder strap, side loops for attaching poles or ice axes, removable elastic strap and front handle for easier carrying backpack. Pinguin provides an extended 2-10 year warranty on the backpack material.