What will win you over with the Prolighter 30+10 backpack is its extremely low weight. The upper fabric used and the lightweight X-Lighter back™ system play a major role in this. However, this does not mean that you have to treat it "like gloves". The durability of the backpack is ensured thanks to the special treatment of the honeycomb material. The outer material of the Prolighter 30+10 backpack is waterproof. However, to keep things dry at all times, you can supplement the backpack with a raincoat or a waterproof bag. The backpack has a narrow shape that does not restrict your movement, three-point suspension of the shoulder straps, which prevents unwanted swings of the backpack, as well as an adjustable chest belt and waist belt with loops for material. You will also appreciate the adjustable lid with 2 pockets, loops for the ice ax and the helmet holder, a loop for attaching the rope and side straps for fastening skis, mats, etc.