The 'Exos 58' is the perfect frame pack for active, light pursuits with two vertical zippered front pockets and two tool attachments so you don't leave anything behind. ; Designed with Modified Airspeed Suspension with a 3D tensioned, breathable mesh backpanel. ; Features a highly ventilated and supportive BioStretch harness that is mesh covered slotted foam with an adjustable sternum strap, attached whistle and gel pocket. ; The 6061-T6 aluminum frame is super light yet extremely durable. ; Removable floating top pocket. ; Super light 7mm webbing side compression to ensure everything remains in place. ; Stow-on-the-Go trekking pole attachment for easy carrying convenience. ; Large front stretch woven pocket. ; Reflective detail to front pocket with an integrated over-skirt compression strap. ; Cord tie-off points. ; Under-lid pocket. ; The convenient BioStretch hip belt is made with mesh covered slotted foam for greater comfort and contains an easily adjustable ErgoPull closure. ; Zippered mesh pockets located on the hip belt. ; Sleeping pad straps at the bottom of the pack. ; Side stretch woven pockets with InsideOut compression for water bottles or stashing last minute items. ; Hydration compatible back panel sleeve with external hose routing guides. ; Osprey will repair for any reason, free of charge, any damage or defect in their product − whether it was purchased in 1974 or yesterday. If they are unable to perform a functional repair on your pack, Osprey will happily replace it. ; Fabric: 70D x 100D Shadowcheck, 160 x 210 Window ripstop. ; Carrying Capacity: Up to 40 lbs. ; Capacity: SM 3300 cu. in. (55L), MD 3500 cu. in. (58L), LG 3700 cu. in. (61L). ; Weight: SM 2 lbs. 7 oz. (1110g), MD 2 lbs. 8 oz. (1140g), LG 2 lbs. 10 oz. (1185g). ; This product may have a manufacturer's warranty. Please visit the manufacturer's website or contact us at for full manufacturer warranty details.