Osprey's stripped down, streamlined 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. No matter how far you go, the Aether Pro is backed by Osprey's All Mighty Guarantee, forever.
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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 & 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 |
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Custom Molding They don’t just carry heavy loads well, they 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. |
Fabric
Main: NanoFly® 210D Nylon X 200D UHMWPE
Accent: 315HD Nylon Oxford
Bottom: PE 210d EXTREEMA (UHMWPE) HD DOPE DYE PU1000mm
| Volume | Dimensions | Weight | |
| XS | 62L | 78H x 41W x 36D cm | 1.63kg |
| S | 65L | 83H x 41W x 36D cm | 1.69kg |
| M | 68L | 88H x 41W x 36D cm | 1.75kg |
Lightweight suspension
Airscape backpanel
ISOFORM4 harness + hipbelt
Contact us within 30 days of receiving your goods to request a refund or exchange if products are eligible (see: Return Policy).
All packaging or products must be in their original, re-sellable condition.
Outlet sales are final and can only be returned for exchange. Items found faulty or under warranty will be replaced or refunded.
Some special condition products are labelled as No Refund & Exchange Products. Sale of these items are final and are not eligible for neither refunds nor exchanges.
For safety reasons, K2 cannot accept returns on climbing equipment, socks, underwear and some other products unless faulty.
Please check out our refund policy if you need more information.
Torso Sizing
1- Find Iliac Crest - Top of hip bone.
2- On back of neck, find C7 vertebra. Touch your chin to your chest and feel the large protruding bone at the base of your neck.
3- Measure - from C7 vertebra to the iliac crest to determine torso length.
Hipbelt Sizing
To determine hipbelt size, measure around the hips at the iliac crest, not the waist. The padded portion should wrap well around the hips, leaving a gap of 3" to 6" between the tips of both hip pads when securely tightened.
| Outdoor Packs Torso Sizes | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | 23" (58.5cm) | 24" (61cm) | 25" (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aether Plus | Aether | - | - | - | S/M | S/M | S/M or L/XL | S/M or L/XL | S/M or L/XL | L/XL | L/XL | ||
| Aether Pro | - | - | S | S | S or M | S or M | M or L | M or L | L | L | - | |
| Atmos AG™ | - | - | - | S/M | S/M | S/M OR L/XL | S/M OR L/XL | S/M OR L/XL | L/XL | L/XL | - | |
| Atmos AG LT | - | - | - | S/M | S/M | S/M | S/M | L/XL | L/XL | L/XL | - | |
| Talon | Talon Pro | - | - | S/M | S/M | S/M or L/XL | S/M OR L/XL | L/XL | L/XL | - | - | ||
| Rook | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | |
| Volt | - | - | - | O/S | O/S | O/S | O/S | OS | - | - | ||
| Exos | - | - | - | S/M | S/M | S/M | S/M OR L/XL | S/M OR L/XL | L/XL | L/XL | - | |
| Exos Pro | - | - | - | S/M | S/M | S/M or L/XL | S/M OR L/XL | L/XL | L/XL | L/XL | - | |
| Kestrel | - | - | S/M | S/M | S/M | S/M or M/L | S/M or M/L | M/L | M/L | M/L | - | |
| Osprey UNLTD AG 32 | - | - | - | S/M | S/M | S/M or L/XL | S/M OR L/XL | L/XL | L/XL | L/XL | - | |
| Stratos | - | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | |
| Soelden Pro | Soelden | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | |
| Kamber 20,30 | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - |
Talon 6 O/S HIPBELT FIT RANGE IS 25-50" (64-127 CM)
| Hydration Packs Torso Sizes | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | 23" (58.5cm) | 24" (61cm) | 25" (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manta | Skarab | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | |
| RAPTOR | SYNCRO | SISKIN | KATARI | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - | |
Duro LT, 6, 1.5 SMALL (30-35" / 75-90 CM.) MEDIUM (35-41" / 90-105 CM.) LARGE (41-47" / 105-120 CM.)— CHEST MEASUREMENT
Duro 15 S/M (30-41" / 76-104 CM.) M/L (41-47" / 104-119 CM.) — CHEST MEASUREMENT
| Travel Packs Torso Sizes | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | 23" (58.5cm) | 24" (61cm) | 25" (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Farpoint Travel Pack | - | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | |
| Farpoint Trek | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | |
| Ozone Duplex (M) | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | |
| Interchangable Hipbelt - Men's Xenith/Aether AG | |
|---|---|
| XS 25-25" / 60-114 cm | M/L 28-45 " / 70-127 cm |
| S 25-25" / 60-114 cm | L 29-55" / 72-140 cm |
| S/M 36-45" / 65-114 cm | O/S 25-50" / 64-127 cm |
| M 27-48" / 69-121 cm | |
| Outdoor Packs Torso Sizes | 11" (28cm) | 12" (30.5cm) | 13" (33cm) | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ariel Plus | Ariel | - | - | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | - | - |
| Ariel Pro | - | - | - | XS | XS | XS or S | XS or S | S or M | S or M | M | M | - |
| Aura AG | - | - | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | - | - |
| Aura AG LT | - | - | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | - | - |
| Tempest | Tempest Pro | - | - | - | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | - | - | - |
| Renn | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - |
| Viva | - | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - |
| Eja | - | - | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | - | - |
| Eja Pro | - | - | XS/S | XS/S | XS/S | XS/S OR M/L | XS/S OR M/L | M/L | M/L | M/L | - | - |
| Kyte | - | - | XS/S | XS/S | XS/S | XS/S or S/M | XS/S or S/M | S/M | S/M | S/M | - | - |
| Osprey UNLTD AG 32 | - | - | XS/S | XS/S | XS/S | XS/S or M/L | XS/S or M/L | M/L | M/L | M/L | - | - |
| Sirrus | - | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - |
| Sopris Pro | Sopris | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - |
| Kresta 20, 30 | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - |
Tempest 6 O/S HIPBELT FIT RANGE IS 24-44" (61-112 CM.)
| Hydration Packs Torso Sizes | 11" (28cm) | 12" (30.5cm) | 13" (33cm) | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mira | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - | - | |
| Skimmer | - | - | - | - | O/S | O/S | O/S | O/S | - | - | - | - | |
| Raven | Sylva | Salida | Kitsuma | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - | - |
Dyna LT, 6, 1.5 SMALL (26-30" / 65-75 CM.) MEDIUM (30-35" / 75-90 CM.) LARGE (35-41" / 90-105 CM.)— CHEST MEASUREMENT
Dyna 15 S/M (26-35" / 66-90 CM.) M/L (35-41" / 90-104 CM.) — CHEST MEASUREMENT
| Travel Packs Torso Sizes | 11" (28cm) | 12" (30.5cm) | 13" (33cm) | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Farpoint Travel Pack | - | - | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - | |
| Fairview Trek | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - | |
| Ozone Duplex (W) | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - | |
| Interchangable Hipbelt - Women's Xena/Ariel AG | |
|---|---|
| XS 24-45" / 60-114 cm | M/L 28-50 " / 70-127 cm |
| S 25-45" / 60-114 cm | L 29-55" / 72-140 cm |
| S/M 26-45" / 65-114 cm | O/S 25-50" / 64-127 cm |
| M 27-48" / 69-121 cm | |
| Outdoor Packs Torso Sizes | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | 23" (58.5cm) | 24" (61cm) | 25" (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hikelite 18, 26 | - | O/S | O/S | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - |
| Hikelite 28, 32 | - | S/M | S/M | S/M | S/M or M/L | S/M or M/L | M/L | M/L | M/L | - | - | - |
| Glade 5, 12 | - | - | - | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - |
| Osprey Sportlite 15, 20 | - | O/S | O/S | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - |
| Osprey Sportlite 25, 30 | S/M | S/M | S/M | S/M | S/M or M/L | M/L | M/L | M/L | M/L | - | - | - |
| Mutant 22 | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - | - | - |
| Mutant 52, 38 | - | S/M | S/M | S/M | S/M or M/L | M/L | M/L | M/L | - | - | - | - |
| Mutant Nimsdai 90 | S/M | S/M | S/M | S/M OR M/L | M/L | M/L | M/L | M/L | - | - | - | - |
| Zealot 30 | - | - | O/S | O/S | O/S | O/S | O/S | - | - | - | - | - |
| Zealot 45 | S/M | S/M | S/M | S/M or M/L | M/L | M/L | M/L | M/L | - | - | - | - |
| Hydration Packs Torso Sizes | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | 23" (58.5cm) | 24" (61cm) | 25" (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Raptor Pro | - | - | - | O/S | O/S | O/S | - | - | - | - | - | - |
Duro Dyna Belt O/S HIPBELT FIT RANGE IS 24 – 45" (60 – 115 CM)
Savu O/S HIPBELT FIT RANGE IS 26 – 50" (66 – 127 CM)
Seral O/S HIPBELT FIT RANGE IS 26 – 50" (66 – 127 CM)
| Child Carrier Packs Torso Sizes | 14" (35.5cm) | 15" (38cm) | 16" (40.5cm) | 17" (43cm) | 18" (46cm) | 19" (48cm) | 20" (51cm) | 21" (53cm) | 22" (56cm) | 23" (58.5cm) | 24" (61cm) | 25" (63.5cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Poco, Poco Plus, Poco LT | - | O/S | O/S | O/S | O/S | O/S | O/S | O/S | - | - | - | - |
Regular Fit:
XS 24-25" / 60-114 cm
S 24-25" / 60-114 cm
S/M 26-45" / 65-114 cm
M 27-48" / 69-121 cm
M/L 28-50" / 70-127 cm
L 29-55" / 72-140 cm
O/S 25-50" / 64-127 cm
Extended Fit:
S/M EF 17-20.5" / 43-52 cm
L/XL EF 19.5-23" / 49-58 cm
O/S EF 40-70" / 101- 177 cm
WXS/S EF 13.5-17" / 34-43 cm
WM/L EF 16-19.5" / 40-49 cm
