Designed for discerning mountain bikers looking for a do-it-all pack, the 8-liter Siskin provides a stable, breathable and highly-comfortable carry. A next-gen reservoir provides plenty of hydration for your biggest rides and features like a separate main compartment and LidLock helmet carrier give it all-day versatility. FEATURES : Upper side compression and full face helmet carry Direct access zip path to reservoir compartment U-zip main compartment access Front fabric shove-it pocket LidLock helmet attachment Blinker light attachment Magnetic sternum strap bite valve attachment Hydraulics LT 2.5 L reservoir included Main compartment tool organization Atilon foam framesheet enables dynamic body movement and evenly distributes load across the entire backpanel Mesh-covered, extra-deep ridged foam with center air channel allows maximum ventilation while keeping the load close to the body Soft breathable spacermesh contact surfaces and die cut foam ventilation Removable 20 mm ride-stabilizing webbing hipbelt