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.Key AttributesHIPBELT POCKETSTwo hipbelt pockets for easy on-the-go access to necessities.ADJUSTABLE AIRSPEED SUSPENSIONInjection-molded ladder adjustment system provides 4" of torso adjustability.INCREASED DURABILITYStrong backpanel mesh and durable main body fabrics provide increased reliability.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 Carry InformationULTRALIGHT AIRSPEED SUSPENSION Injection-molded ladder adjustment system provides 4" of torso adjustability Two size per gender design ensures perfect fit and allows for quick, easy adjustment Stronger mesh and reduced seam design provides increased reliability for rigorous thru-hike usage 4 mm powder coated LightWire frame EXOFORM HARNESS Seamless layered mesh provides improved comfort and cushioning 15 mm adjustable slide sternum strap EXOFORM HIPBELT Zippered hipbelt pockets provide secure and accessible storage for on-trail essentials Extended hipbelt shape increases carry comfort ErgoPull closure provides leverage to ensure snug fit and optimal load transfer Specs LOAD RANGE: 25 - 30 lbs. S/M: VOLUME: 2929 IN3 / 48 L DIMENSIONS: 29.53H X 14.17W X 11.81D IN. WEIGHT: 2.767 LBS. L/XL: VOLUME: 3112 IN3 / 51 L DIMENSIONS: 31.5H X 14.17W X 11.81D IN. WEIGHT: 2.853 LBS. FABRIC: 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