Description You take your hiking seriously, and like to stretch your day hikes into lightweight overnights more often than not. The Sirrus 44 is a full-featured women's-specific pack built for rugged trails, rain or shine, with serious features and a top-loading design so you can easily stuff and go. It's a technical pack with a cloudlike carry, thanks to its highly ventilated AirSpeed® suspension system. Made with 100% recycled materials. Features AIRSPEED® VENTILATION: Injection-molded suspension system w/ 3D-tensioned mesh provides breathable support. COMPREHENSIVE FIT: Taller, wider frame geometry combines with tailored adjustment system to extend fit range. INCLUDED RAINCOVER: Made with sustainable bluesign® approved materials. 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 Hidden vertical zipper on left side of pack accesses a large pocket for additional storage Osprey Women's Sirrus 44 Backpack