Osprey Ariel 55 Women's Trekking Backpack - Koseret Green, M/L

Long-distance treks demand a pack that can carry heavy loads comfortably without sacrificing stability or access. The Osprey Ariel 55 answers that call with a women's-specific fit, robust suspension, and versatile access—engineered for multi-day adventures where every gram and every litre counts.

Who is it for

Built for female backpackers and thru-hikers who need a durable, high-capacity pack for extended trips. The M/L size fits torso lengths from 46 to 53 cm, and the adjustable hipbelt and shoulder straps ensure a personalised, load-bearing fit for a wide range of body shapes.

Main features

• 55-litre capacity with top-loading, large U-zip front panel, and separate sleeping bag compartment for quick access to gear.
• AirScape™ backpanel with LightWire™ peripheral frame transfers weight to the hips while maintaining airflow.
• Adjustable Fit-on-the-Fly™ hipbelt and shoulder straps allow micro-adjustments without removing the pack.
• Integrated and removable raincover keeps contents dry in sudden downpours.
• Stow-on-the-Go™ trekking pole attachment lets you stash poles without taking off the pack.
• Removable top lid converts to a DayLid™ daypack for summit pushes or town excursions.
• Multiple pockets: zippered hipbelt pockets, dual-access stretch mesh side pockets, and front shove-it pocket for quick storage.
• Internal hydration sleeve accommodates a reservoir (not included) for on-the-go drinking.

Specifications

• Capacity: 55 litres
• Recommended load range: 14–23 kg (30–50 lbs)
• Frame type: Internal frame
• Main material: 420D high-tenacity nylon
• Bottom material: 210D high-tenacity nylon
• Gender: Women's
• Colour: Koseret Green
• Size: M/L (torso fit range: 46–53 cm)
• Compression straps: Dual upper and lower side compression
• Closure type: Zipper and buckle
• Hydration compatible: Yes (reservoir not included)
• Raincover: Integrated and removable
• Trekking pole attachment: Stow-on-the-Go™
• Removable top lid: Yes, converts to DayLid™ daypack

Tips

To get the most from your Ariel 55, adjust the hipbelt first so it sits over your iliac crest, then tighten the shoulder straps and load lifters. Use the sleeping bag compartment for bulky items and the front shove-it pocket for a wet tent or rain jacket. For day hikes from basecamp, detach the top lid and use it as a lightweight daypack.