Osprey's stripped down, streamlined, and svelte Ariel Pro is made for type-two adventures that span days or months; alpine climbing expeditions with remote basecamps; or boundary-pushing thru-hikes through unknown landscapes, where the only trail is the one you make. With one zipper and strengthened hardware, this pack provides worry-free dependability. The hipbelt and harness are interchangeable, and the hipbelt can be custom molded to achieve a fit that's as perfect as this pack.

• Body: NanoFly™ 210D Nylon X 200D UHMWPE
• Accents: 315D Nylon Cordura® USA
• Bottom: 200D UHMWPE
• High-Performing Design: Stripped down, lightweight, lean, and mean for moving fast and getting the job done. Built with rugged dependability to keep you moving strongly toward your objective, no matter how big.
• Lightweight and Streamlined: These packs are built for those who appreciate efficiency and create their own specific systems of organization based on their unique needs, whether expedition mountaineer or explorer of points unknown
• Custom Molding: They don’t just carry heavy loads well; they also fit bodies of all shapes and sizes. Interchangeable harness sizes coupled with heat-moldable hipbelts provide the most outstanding fit and comfort possible.
• A Yarn To Tell: NanoFly™ fabric integrates ultra-high-molecular-weight polyethylene (UHMWPE) ripstop and 210D Nylon, creating an incredibly light fabric with remarkable abrasion resistance.
• Removable floating top lid with a zippered pocket for storing smaller items
• Integrated FlapJacket™ protects packed gear when top lid is removed
• Stow-on-the-Go™ trekking pole attachment allows you to stow your poles in steep terrain or whenever you need your hands free
• Dual removable ice tool loops with upper cord attachments
• Internal reservoir sleeve accommodates up to a 3L reservoir
• Dual front compression straps maintain a slim profile and stabilize loads
• Large, dual removable hipbelt pockets, one zippered and one with a cinch closure, keep a water bottle, snacks, and smaller items close at hand
• Dual removable side compression straps stabilize loads or can be removed to save weight
• Reinforced cord loops to attach Osprey Daylite daypack or Alpine Pocket
• Removable sleeping pad straps
• Sternum strap with whistle for moments when “safety third” doesn’t cut it*
• Lightwire™ Suspension: Aluminum 7075 peripheral frame effectively transfers load to hipbelt; Single 6061-T6 center stay maintains backpanel shape
• Airscape™ Backpanel: Precision-cut and accordion-spread mesh-covered foam ridges. Lightweight and comfortable contact surface
• Isoform4 Harness: Spacer mesh fabric provides a comfortable fit
• Isoform4 CM™ Hipbelt: Custom heat molding for a precise, personalized fit
• Volume:
• WXS: 3783 cu. in. / 62 L
• WS: 3967 cu. in. / 65 L
• WM: 4150 cu. in. / 68 L
• Dimensions:
• WXS: 30.71H x 16.14W x 14.17D in.
• WS: 32.68H x 16.14W x 14.17D in.
• WM: 34.65H X 16.14W X 14.17D in.
• Weight:
• WXS: 3.6 lbs.
• WS: 3.73 lbs.
• WM: 3.85 lbs.
• Holds 30-60 lbs.
• Torso:
• WXS: 15-17 in.
• WS: 16-19 in.
• WM: 18-20 in.
• Spot clean
• Imported