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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Thursday, Nov 5
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At a glance
- Condition
- New
- Size
- Large-X-Large
- Color
- Deep Acorn Red
- Dimensions
- 9.8"D x 15"W x 32.7"H
- Weight
- 4.9 lb
- Strap Type
- Backstraps
- Apparel Closure Type
- Zipper
Features 6
- Custom Fit - A 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 sizes
- Load Capacity - Designed to provide a stable close-to-body carry; ideal for managing heavier loads when the trail gets technical
- AirScape Suspension - An injection-molded, die-cut foam AirScape backpanel creates a breathable, close-to-body fit
- Included raincover
- Zippered sleeping bag compartment with removable divider
- Item Dimensions: 32.7H x 15W x 9.8D in; Item Weight: 4.87lb
Description
Winner of the 2021 Backpacker Editors' Choice Gold Award. When you come to the trail fully prepared, you expect the same reliability and readiness from your pack. The Aether 55 delivers a Custom Fit-on-the-Fly hipbelt and shoulder straps, and an adjustable torso that provides a near-perfect fit. An injection-molded backpanel offers close-to-body performance. Raincover included.
Specs 38
| Other Special Features of the Product | Adjustable |
|---|---|
| Recommended Uses For Product | Sport |
| Strap Type | Backstraps |
| Compatible Device Size Maximum | 32.7 inches |
| Apparel Closure Type | Zipper |
| Water Resistance Level | Water Repellent |
| Number of Compartments | 1 |
| Fit to Size Sentiment | Positive |
| Fit Type | adjustable |
| Material Type | bluesign® APPROVED, 100% recycled 420HD nylon packcloth, DWR treatment made without PFAS |
| Outer Material | bluesign® APPROVED, 100% recycled 420HD nylon packcloth, DWR treatment made without PFAS |
| Lining Description | bluesign® APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS |
| Shell Type | Soft Shell |
| Apparel Fabric Stretch | No Stretch |
| Apparel Fabric Weight Class | Lightweight |
| Storage Volume | 58 liters |
| Item Dimensions D x W x H | 9.8"D x 15"W x 32.7"H |
| Item Weight | 4.9 pounds |
| Unit Count | 1 Count |
| Size | Large-X-Large |
| Strap Size | Large |
| Backpack Harness Size | Large |
| Color | Deep Acorn Red |
| Backpack Design | Framed Backpack |
| Sport Type | Hiking |
| Pattern | Solid |
| Product Style | Backpacking Backpack |
| Brand Name | Osprey |
| Age Range Description | Adult |
| Style Number | 10006675 |
| Model Name | Aether 55 |
| School Type | College/University |
| Number of Items | 1 |
| UPC | 843820199291 |
| Item Type Name | Backpacking Backpack |
| Manufacturer | Osprey |
| Manufacturer Part Number | 10006675 |
| Import Designation | Imported |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I love this backpack! And it loves me back.
Size: Small-Medium
Color: Garlic Mustard Green
This rucksack is the best. Great for shorter trips. Would recommend something bigger for longer thru-hikes. Figuring out how it works is so intuitive, you don’t even need instructions (they are included though). Osprey earns its reputation!
Reviewed in the United States on October 15, 2025 by Matthew S. Moore
Great Pack!
Size: Large-X-Large
Color: Garlic Mustard Green
I've been looking for a pack for a long time and after extensive research, this is my choice. Fits really well, build quailty is top shelf and weight is evenly distributed if packed correctly. Straps dont dig in to shoulders or hips. I only have time to go out 1-2 nights so this pack is sorta over kill but I'll be glad I have in when I go to BWCA. Would highly recommend
...
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Reviewed in the United States on January 16, 2025 by Foster-Koster
They make an outstanding product hands down.
Size: Large-X-Large
Color: Black
I love the osprey brand. The quality of material and blend , this rounded out my packs, this one being for week long getaways.
Reviewed in the United States on June 29, 2025 by Todd Zimmerman
Fits me and and I am tall and broad shouldered
Size: Large-X-Large
Color: Black
While I really wanted a smaller, lighter backpack for trekking in Peru, this is the one I will be taking. All the smaller backpack were "one size fits most" backpacks and they don't fit me. I am 6' 2"" with very broad shoulders, and those other backpacks didn't sit right on my shoulders or hips. This Osprey backpack works as it is tall/large. Yes, it is 3 1/2 pounds or so, so heavier than I wanted. But it fits, and it has lots of adjustments, so if I do need to adjust while trekking it, I can do it easily. I am probably going to carry a lot, lot less than the max weight of this backpack. More like 30 pounds rather 55. But as I have already written, the smaller backpacks seems more suited to smaller individuals. I also like the fact the backpack holds a water bladder and has a hole for the bladder's water hose to go through. Very handy.
...
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Reviewed in the United States on March 24, 2022 by S. Gower
Excellent size and comfortable pack.
Size: Large-X-Large
Color: Black
Used pack for 50 mile segment of CDT in Colorado. Pack was comfortable and able to carry food tent etc. without problem. May be a little large for ultra lite thru hikers but for me worked fine. One feature which was more an annoyance and took getting used to was the design of the pockets for water bottles. The cross straps that cross the pocket could cause difficulty in put bottles back easily.
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Reviewed in the United States on September 8, 2022 by Jim Cullen
good comfort and adjustments
Size: Large-X-Large
Color: Deep Water Blue
a bit on the heavy side but I just finished a long through hike with it and it was comfortable.
Reviewed in the United States on June 20, 2025 by TX gadget nut
Comfortable
Size: Small-Medium
Color: Black
Osprey quality and comfort!
Reviewed in the United States on February 17, 2025 by Wayne Spivey
Great pack
Size: Small-Medium
Color: Deep Water Blue
Great quality and many pockets make this a fantastic backpack.
Reviewed in the United States on August 30, 2023 by Steve M. Feifar