You like to shift up a gear when hiking and lightweight and compact equipment is a must, the Mammut Lithium 20 pack is made mainly from recycled materials and the durable water-repellent treatment is PFC-free. The very lightweight and breathable shoulder padding makes it feel very comfortable to carry. Air channels in the 3D EVA foam provide good ventilation. The padded hip belt has a fold-out pocket for your smartphone. If you don’t need it, you can simply remove it. The same applies to the integrated rain cover. The backpack is compatible with hydration systems. The mesh side pockets allow access even when walking. With the Lithium 20, you’re traveling in the fast lane in the mountains.