Legendary. Iconic. Classic. Durable. Since 1862. The Xeron 20 - a tribute to our MAMMUT heritage. High-end details such as the MAMMUT Mini Biner and the mountain print of the inner lining show the connection to climbing and to the mountains. 1862, our founding year, is embossed on the rear of the backpack while Safety Orange color details are a reminder of our "Safety first!" approach. A range of features round off this practical daypack. Xeron 20, a companion for everyday life.