The Mammut Tour 30L Pack with Removable Airbag 3. 0 is a ski touring backpack that carries ski gear without sacrificing fit on long backcountry days. An aluminum CONTACT U Frame routes the load of skis, a snowboard, or a splitboard straight through the frame rather than the shoulders, and a broad hip belt with a 3D-molded back panel follows a women's frame for comfort that holds up mile after mile. The pack stays stable through a full day of climbing and descending in avalanche terrain. What Our Gearhead® Experts Are Saying:"The Airbag System 3. 0 isn't locked to one pack. I move mine between packs depending on the trip, so I'm not buying a new airbag setup every time my pack size changes."