When day hikes stretch out into more committing endeavors, the Stratos 36 is the perfect size for your essentials and then some. Its top-loading design, topped by a fixed top lid, helps make packing a breeze. Plus, with its highly ventilated AirSpeed® suspensions system and just enough volume to empower your bigger pursuits, it inspires long days and lightweight nights exploring our more rugged trails, rain or shine. Made with 100% recycled materials. Features and Specifications Included raincover made with PFC/PFAS-free DWR and bluesign® approved materials Zippered front stash pocket Dual zippered hipbelt pockets Side stretch mesh bottle pockets Internal hydration sleeve with hose port in backpanel Stow-on-the-Go trekking pole attachment with new soft-touch tubes Dual side compression straps Single ice axe loop with bungee tie-offs Front panel lash loops for attaching extra gear Top loading design with a secure drawcord closure Fixed top lid with large main compartment and underlid zippered mesh pocket with key clip Hidden vertical side zip access into main compartment for quick access to contents Zippered access lower compartment with a floating liner keeps contents organized and accessible Accessory straps on lower front panel are perfect for pads or blankets Osprey Stratos 36 Litre Men's Hiking Backpack