Osprey
Aether Plus 100
Best high-capacity pack for serious long-distance wilderness trekkers.
The Osprey Aether™ Plus 100 is a robust backpacking pack designed for extended trips and challenging trails. It features a custom-fit system with adjustable hipbelt and shoulder straps for a personalized carry. The pack offers ample storage with a large main compartment, a removable top lid that converts to a daypack, and multiple external pockets. Constructed with durable, sustainable materials, it ensures comfort and stability even with heavy loads, making it ideal for serious adventurers.
$490.00
Owner Satisfaction
4.6
/ 5
Category Rank
1349
/ 13466
#1349 in Backpacks
Price vs Category Average
+361%
Above average
Load Range
4070.1832
/ - lbs / - kg
Who it's for
- Thru-hikers carrying heavy loads over long distances
- Expedition travelers needing space for extensive gear
- Backpackers wanting a versatile summit pack
Who should skip it
- Ultralight hikers prioritizing minimal pack weight
- Smaller hikers finding large frames cumbersome
- Budget-conscious buyers seeking entry-level pricing
Performance breakdown
Load Carrying Capacity
Handles heavy expedition loads with exceptional stability and structural integrity.
Fit Customization
Fit-on-the-Fly adjustments provide a tailored feel for diverse body types.
Storage Versatility
Clever lid-to-daypack conversion maximizes utility for basecamp excursions.
Ventilation Performance
AirScape backpanel effectively manages heat during high-exertion climbs.
Access Efficiency
Front panel zip access makes retrieving gear effortless on the trail.
Weight-to-Durability Ratio
Robust materials ensure longevity but add noticeable weight to the frame.
Key Specs
Load Range
40 - 70 lbs. / 18 - 32 kg
Volume
5980 IN 3 / 98 L (S/M)
Dimensions
32.28H X 16.54W X 15.75D IN. / 82H X 42W X 40D CM (S/M)
Weight
6.392 LBS. / 2.9 KG (S/M)
Material
bluesign®-approved 210D high-tenacity nylon, PFC-free DWR
Hip Belt
Custom Fit-on-the-Fly Hipbelt
Sternum Strap
Included
Hydration Compatible
Yes
Features
- Removable top lid converts to DayLid daypack
- Included raincover made with PFC-free DWR and bluesign®-approved materials
- Stow-on-the-Go trekking pole attachment
- Floating top lid with lash points
- Integrated FlapJacket cover for lidless use
- Large front panel zip access to main compartment
- Custom Fit-on-the-Fly Hipbelt and Shoulder Strap for personalized fit
- AirScape backpanel with ventilated airflow channels
What customers say
Customers consistently praise the Aether Plus 100 by Osprey for its exceptional comfort, even when carrying substantial loads over long distances. The adjustable fit system receives high marks, allowing users to achieve a personalized and stable carry. Reviewers frequently highlight the robust build quality and durable materials, noting the pack's ability to withstand rigorous outdoor conditions. This reliability instills confidence, making it a trusted companion for extended expeditions. The thoughtful design elements further enhance the overall user experience, reinforcing its reputation as a top tier choice for serious backpackers.
Know before you buy
The Fit-on-the-Fly system allows you to manually adjust the length of the hipbelt and shoulder straps to match your specific torso length and waist size. This ensures the weight is distributed correctly across your hips rather than pulling on your shoulders, which is essential for carrying heavy loads over long distances.
Yes, the pack features an integrated FlapJacket cover that allows you to remove the top lid entirely while keeping the main compartment protected. This reduces the pack's profile and weight for shorter trips where you don't need the extra volume.
The removable top lid converts into a 'DayLid' daypack, which is designed for lightweight excursions like summit pushes or quick trips away from camp. While it lacks the structure of a dedicated technical daypack, it is perfectly capable of carrying your essentials like water, a shell, and snacks.
The AirScape backpanel uses molded foam with ventilated airflow channels to promote air circulation between your back and the pack. While no pack eliminates sweat entirely, this design significantly improves breathability and comfort during high-exertion hikes in warmer climates.
The Aether Plus 100 comes with an integrated raincover included. It is constructed with PFC-free DWR and bluesign®-approved materials, ensuring your gear stays dry during unexpected downpours.
Beyond the traditional top-loading access, the pack features a large front panel zipper. This allows you to open the main compartment like a suitcase, making it much easier to retrieve items from the bottom or middle of your pack without having to dump everything out.
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$490