Description When you're counting every ounce but you know the value of a truly comfortable pack, the Exos was developed just for you. Reach for the Exos 48 for the perfect mid-size ultralight, with plenty of room to put in the miles, but not so much that you're tempted to overpack. Highly experienced backpackers will appreciate industry-leading comfort and ventilation—without the weight it often adds—making it the perfect pack for ultralight multiday adventures. For those who really need a svelte carry, the removable floating lid makes way for an integrated FlapJacket that keeps your minimal gear contained in its stead. Our refined AirSpeed® suspension keeps you cool with maximum airflow between you and your pack, so each mile stays as comfortable as the last. Made with 100% recycled materials.  Features Top pocket web loop attachment points Removable floating lid with top- and under-lid zippered pockets Integrated FlapJacket cover for lidless use Internal hydration sleeve with center back hose port Front stretch mesh pocket for stashing gear Dual-access stretch mesh side pockets Dual strippable side compression straps Web lash points for attaching overloads Removable sleeping pad straps Dual ice axe loops with bungee tie-off Dual zippered hipbelt pockets to keep essentials handy Stow-on-the-Go trekking pole attachment Sternum strap with integrated safety whistle HIPBELT POCKETS: Two hipbelt pockets for easy on-the-go access to necessities. ADJUSTABLE AIRSPEED SUSPENSION: Injection-molded ladder adjustment system provides 4" of torso adjustability. INCREASED DURABILITY: Strong backpanel mesh and durable main body fabrics provide increased reliability. Specifications Weight: 1.255kg (S/M) 1.294 kg (L/XL) Capacity: 48L (S/M), 51L (L/XL) Material(s): MAIN bluesign® approved recycled 100D high tenacity nylon ripstop, PFC/PFAS-free DWR; ACCENT bluesign® approved recycled 400D high tenacity nylon, PFC/PFAS-free DWR; BOTTOM bluesign® approved recycled 100D high tenacity nylon ripstop, PFC/PFAS-free DWR Sizing guides: Osprey Men's Exos 48 Backpack