This backpack for day hikes and minimalist trekking prioritizes comfort, freedom of movement, and easy access. Our improved patented Mammut Active Spine 3.0 adapts to the movements of your spine and distributes weight evenly across your body, while the mesh back maximizes air circulation. Important items like water bottles are always just a hand's reach away thanks to the easily accessible mesh pockets, and the removable integrated rain cover protects your gear in wet weather. With a capacity of 28-35 liters, the Ducan Spine in a modern, technical unisex design makes challenging stages feel much shorter.