Description 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 Key Attributes RESERVOIR INCLUDEDComes with an Osprey Hydraulics™ LT 2.5 L reservoir with direct zip access and sternum strap magnetic bite valve attachment. HELMET CARRYOffers traditional LidLock helmet carry or full face helmet carry with the compression straps. RIDE STABILITYA rolled, soft-edged harness creates a comfortable and stable carry. BIKE-FOCUSED FEATURESJust the right volume for any ride, providing tool organization, helmet carry and a full U-zip main compartment opening. Carry Information AIRSCAPE™ SUSPENSION Atilon foam framesheet enables dynamic body movement and evenly distributes load across the entire backpanel AIRSCAPE™ BACKPANEL M esh-covered, extra-deep ridged foam with center air channel allows maximum ventilation while keeping the load close to the body BIOSTRETCH HARNESS S oft breathable spacermesh contact surfaces and die cut foam ventilation HIPBELT R emovable 20 mm ride-stabilizing webbing hipbelt Specs Weight 530g (One Size) Ideal for Mountain biking Main fabric 400-denier recycled nylon Hipbelt Removable waistbelt Access Clamshell zip Volume 8L Length 47cm Width 21.5cm Depth 17.5cm Ventilated back panel Yes Carry-on-sized Yes Additional feature(s) Compression straps Hydration compatible (reservoir included) Helmet attachment Product sustainability Contains Bluesign® Approved Materials Contains Recycled Materials Made in Viet Nam