Description Product Description The Mammut Nirvana Rocker 20L Pack is a minimalist's dream backpack for a day in the backcountry. You'll have everything you need with just enough room for your avalanche gear, skins, and a hydration reservoir. An advanced suspension system makes sure the load is evenly distributed across your back, and there is a two layer EVA padding across the back panel to give you the ultimate comfort available in such a small pack. With a diagonal ski carry system, you'll have everything you need for hiking up powder capped peaks and flying back down.