The Siskin 12-litre is a well-balanced performance mountain biking pack designed for adventurous days on the trail, offering a generous main compartment for essentials like spare tubes, multi-tools, trail pumps, and extra layers. It includes an Osprey Hydraulics LT 25 L reservoir with direct zip access and a magnetic bite valve attachment on the sternum strap. The pack features a rolled, soft-edged harness and an air mesh wrap hipbelt for comfortable and stable carrying. It provides traditional LidLock helmet carry or full-face helmet carry using the compression straps. This pack is perfectly sized for any ride, offering dedicated tool organization, helmet carry options, and a full U-zip main compartment opening with upper side compression.