Ideal for anyone in need of a pack with a fine-tuned fit, the Aether/Ariel Series fits a variety of body shapes and sizes. A Custom Fit-on-the-Fly(TM) Hipbelt, Shoulder Straps and adjustable torso length offers a fine-tuned fit and an injection-molded backpanel delivers breathable, close-to-body performance. Made with bluesignA(R)-approved nylon and PFC-free DWR. Raincover included.SpecsLoad Range: 30 - 60 lbs. VolumeDimensionsWeightWXS/S3173 in3 / 52 l28.74h x 14.96w x 9.84d in.4.774 lbs.WM/L3356 in3 / 55 l30.71h x 14.96w x 9.84d in.4.818 lbs. FabricMainbluesignA(R)-approved 420HD nylon packcloth, PFC-free DWRAccentbluesignA(R)-approved 210D nylon Diamond, PFC-free DWRBottombluesignA(R)-approved 420HD nylon packcloth, PFC-free DWRKey AttributesCUSTOM FITA Custom Fit-on-the-Fly Hipbelt, Custom Fit-on-the-Fly Shoulder Strap and adjustable torso length allow for a fine-tuned fit for a variety of body shapes and sizesAIRSCAPE SUSPENSIONAn injection-molded, die-cut foam AirScapeTM backpanel creates a breathable, close-to-body fit.LOAD CAPACITYDesigned to provide a stable close-to-body carry; ideal for managing heavier loads when the trail gets technical.SUSTAINABLE MATERIALSConstructed with high-quality bluesignA(R)-approved nylon and PFC-free DWR.FeaturesIncluded raincover made with PFC-free DWR and bluesignA(R)-approved materialsLarge front panel zip access to main compartmentFloating top lid with lash pointsFabric reinforced front shove-it pocketLarge dual-access stretch mesh side water bottle pocketsDual upper/lower side compression strapsDual front panel compression straps with StraightJacket compressionDual zippered hipbelt pocketsDual ice axe loops with bungee tie-offsZippered sleeping bag compartment with removable dividerRemovable sleeping pad strapsInternal hydration reservoir sleeveAnchor loops for an optional Osprey DayliteA(R) daypack for short foraysCarry InformationAIRSCAPE BACKPANELInjection-molded, die-cut foam AirScape(TM) framesheet maintains comfortable back contact with ventilated airflow channels and maximum stability for carrying heavy loadsMesh-covered foam lumbar for supportive, lightweight and comfortable contact surfacesCUSTOM FIT-ON-THE-FLY SHOULDER STRAPCustom Fit-on-the-Fly Shoulder Straps allow for a precise shoulder wrap and fitSpacer mesh fabric provides a soft and comfortable contact surfaceCUSTOM FIT-ON-THE-FLY HIPBELTExtendible Custom Fit-on-the-Fly Hipbelt offers a precise fit for varying waist sizesIncremental length and angle adjustments allow for a fine-tuned fitCrossbody ErgoPull hipbelt pulls weight into lumbar when hipbelt is tightenedENHANCED LOAD TRANSFERThe Custom Fit-on-the-Fly Hipbelt integrates the LightWire frame into the adjustment system-creating a better distribution of weight and, in turn, a better carry