What the Prolighter 30+10 will undoubtedly win you over is its extremely light weight. The upper fabric and the lightweight X-LIGHTER BACK™ back system play a major role in this. But that doesn't mean you have to handle it "like a glove". The durability of the backpack is ensured by the special honeycomb material treatment. The top material of the Prolighter 30+10 is waterproof. However, to keep your gear dry at all times, you can add a raincoat or waterproof bag. The narrow shape is suitable for alpine activities (multi-length climbing, ski mountaineering). Three-point suspension of shoulder straps - prevents unwanted swings of the backpack. Adjustable chest belt. Removable hip belt. Adjustable lid with 2 pockets. Axe loops. Rope loop for ski attachment. Loops for attaching helmet holder.