This 14-liter pack is well-suited for long rides where layers, tools, food, extra tubes, and plenty of water are on our required gear list. A supportive and breathable air suspension back panel and ventilated ergonomic shoulder straps help us stay cool and comfortable all ride long. The included lumbar hydration reservoir ensures that a steady supply of water flows freely without throwing off our balance as we ride down over the twists, turns, berms, and jumps on the trail.