How to Choose a Backpack
Osprey Aether 55 Pack - Men's
$325.00
Members get an est. $32.50 in rewards
When you're hauling weight for days in the wild, the durable, lightweight design and fine-tuned, customizable fit of the men's Osprey Aether 55 pack help you to carry the load in comfort.
- With an adjustable torso length and custom Fit-on-the-Fly™ shoulder straps and hipbelt, this pack offers a fine-tuned fit for a variety of shapes and sizes
- Injection-molded AirScape™ back panel and mesh-padded shoulder straps offer next-to-body comfort
- Durable fabric is treated with a PFC-free DWR (durable water repellent); fabric is made with bluesign®-approved materials
- Raincover with a PFC-free DWR treatment keeps your pack and contents covered in foul weather; raincover is made with bluesign®-approved materials
- Large front panel zipper allows easy access to the main compartment; floating top lid with lash points enables access from above
- Fabric-reinforced front shove-it pocket is ideal for raingear or pack-out materials
- Dual-access stretch-mesh side water bottle pockets
- Dual upper and lower side compression straps secure contents along the edges to balance weight and prevent shifting
- Dual front panel compression straps with StraightJacket compression secure contents to better center your balance
- 2 zippered hipbelt pockets provide easy, convenient access to phones, GPS devices, battery packs and more
- Dual ice axe loops with bungee tie-offs secure climbing gear and extra tools needed in the backcountry
- Zippered compartment for a sleeping bag includes a removable divider to separate contents
- Sleeping pad straps can be removed
- Internal hydration reservoir sleeve (reservoir not included)
- Anchor loops attach an optional Osprey Daylite® daypack for short forays (Daylite pack not included)
Imported.
View the Osprey Aether Product LineView all Osprey Backpacking Packs| Best Use | Backpacking |
|---|---|
| Frame Type | Internal Frame |
| Gear Capacity (L) | S/M: 55 liters L/XL: 58 liters |
| Gear Capacity (cu. in.) | S/M: 3,356 cubic inches L/XL: 3,539 cubic inches |
| Weight | S/M: 5 lbs. L/XL: 5 lbs. 1 oz. |
| Adjustable Torso Length | Yes |
| Fits Torso Length (in.) | S/M: 17-20.5 inches L/XL: 19.5-23 inches |
| Fits Waist/Hips | S/M: 28-50 inches L/XL: 30-55 inches |
| Material(s) | 420HD nylon packcloth; 210-denier nylon Diamond (bluesign®-approved) |
| Frame Material | 3.5 mm LightWire peripheral frame |
| Number of Stays | 1 peripheral hoop |
| Reservoir Compatible | Yes |
| Pack Access | Top/panel |
| Number of Exterior Pockets | 7 + main compartment |
| Sleeping Bag Compartment | Yes |
| Raincover Included | Yes |
| Hipbelt Pockets | Yes |
| Dimensions | 31 x 15 x 10 inches |
| Gender | Men's |
| Sustainability | Contains materials that meet the bluesign® criteria |
Buying Advice
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Most Helpful Favorable Review
If you have to replace your Jansport from 1976!
KThomsen4 years ago
Off the shelf and straight onto the trail within two hours - extremely well designed, zippers are solid but pull with coiled ease. Pocket distribution / design excellent. Load carries like a dream.
KThomsen
Pittsburgh PA
19 people found this review helpful
Most Helpful Critical Review
A lightweight pack that can handle loads
White Mountains NH3 years ago
I bought this pack a couple weeks ago to use as my winter pack here in the White Mountains of NH. My typical daypack is a stratos 24 from Osprey from over a decade ago, and this new pack weighs the same but can carry more than dbl the load. My most recent trip was MtGarfield 4500' 32°F down low to -15°F WC summit temp with wet snow, sleet, and heavier snow- so frequent switching of layers was needed. The stash pocket in the front was great for a damp fleece and the shell that was on and off. Being able to unzip the main compartment from the side made it easier to access the down jacket for the summit.
As for comfort.... after recieving the pack, i loaded it up and made the 3 adjustments this pack offers for a really comfortable trekking experience. It was like i wasn't even wearing the pack at all! The air space channels were nice keeping back sweat at a minimum, although it's almost impossible not to sweat on the steeper sections. The lumbar support is a new one for me and really is a game changer.
The zippers are good, material rugged, but one con thus far is the rain cover. Although it has the cinching ability to cinch around the pack, there's no button or buckle to snap it together guaranteeing it won't blow off. Here in the Whites, winds on the summits and ridges are 50-85 mph on a daily basis. Osprey should add that security button or buckle. I went with a different Osprey pack cover that had this.
Happy trails and fight for liberty.
White Mountains NH
WMNF N.H.
18 people found this review helpful
Customer Images
Powder A.
Kilimanjaro, Africa
3 years ago
I contribute my success of submitting Mount Kilimanjaro to this pack. It is extremely comfortable and when I was in the military I could really use this.
Originally posted on Osprey
Stevo's W.
Great features but TERRIBLE for long days with Heavier loads
1 year ago
This pack has every feature one would want in a pack except for a MAJOR design flaw. It has 2 friction points on the back adjustment system which rub on my back and leave me with two red chaffing marks and bruises after every long hike with heavier loads (40-45lbs). I originally bought this for mountaineering and it was perfect because I was wearing so many layers due to cold weather. Now that I'm using it in warm weather without the extra layers on my upper body, I have found that the 2 adjustment strap connection points rub on my back and have removed the skin and caused painful bruising. I have adjusted the pack a number of times to see if it would help but have found that nothing works. I own numerous packs for every possible situation and although I love the features of this pack it is simply too painful to use in warmer weather when I am not wearing extra layers to provide some protection for my back. I hate to say it because I love the features but coming from someone that wears a pack at least 3 out of 7 days every week, I would NOT recommend this pack. There are many other brands with different designs that do not have this issue.
Originally posted on Osprey
AWetty
Virgina
Great on hiking trails and off the path!
3 years ago
Used this Pack for the 1st time in the Unitas Mts of Utah last week. Worked amazing. Great fit and can pack a heavy load!! Waterproof bag help up nicely!!
Age:45–54
Weight:175–200 lbs.
Height:6'2"
Yes , I recommend this product
Str8Shooter
Maryland
Great on the Trail
3 years ago
Hiked 2 days with this on the AT with 27 pounds total weight and went 11.5 miles no problem - could have easily done 15 miles, but this was a shakedown trip for me. What I liked about it was the extra lumbar support, it was like have a comfy chair for my back. I almost didn't buy this because of all the hype about lighter backpacks, but REI didn't have the lighter one I was looking for and this one seemed to fit me great so I gave it a try. It's a couple pounds heavier, but I now have great confidence that this pack can carry the extra weight. comfortably.
Age:55–64
Weight:125–150 lbs.
Height:5'9"
Yes , I recommend this product
KThomsen
Pittsburgh PA
If you have to replace your Jansport from 1976!
4 years ago
Off the shelf and straight onto the trail within two hours - extremely well designed, zippers are solid but pull with coiled ease. Pocket distribution / design excellent. Load carries like a dream.
Age:55–64
Weight:225–250 lbs.
Height:6'0"
Yes , I recommend this product
Jespo
Drums , Pennsylvania
Decent bag
4 years ago
At 5 foot 9 inches i was on the edge of a s/m and a L/xl i went with the xl . Hip belt takes time to get used to but should be able to be dialed in. One of the three finger prongs that connects the straps broke and a Zipper on main busted / came off trac , pack holds a good bit , but could be a tight fit depending on user . I am a beginner and this was after an over nighter in the smokies near the at and a two night hike on the loyalsock trail over 30 miles
Age:25–34
Weight:125–150 lbs.
Height:5'9"
Yes , I recommend this product
Vigo The Carpathian
Philadelphia
Great after some getting used to.
2 years ago
I'm coming from a 65L REI co-op bag from 2012, which has been a great bag in its own right and served me well for many years as a beginner backpacker. My main problem with the 65 is for 3-4 days out, it's almost too much room. I'll never be able to resist the temptation to fill the extra space with nonsense, so I wanted to drop down in size and force myself into more efficiency. Anyway, on to the Osprey. I've been using this bag for two years now and it's been terrific. It's very feature heavy and all of the smart little details have allowed me to pack smart every time out. I'm a water bottle guy, but I like having the option for a hydration pack should I decide to use one. It's taken a little troubleshooting to dial in the exact settings my own comfort, but now that it's locked in it feels like wearing nothing at all (nedflanders.gif). One major advantage to this bag is the ability to pack vertically. The main compartment allows for a lot of up and down room, which gives a lot of options to balance your weight perfectly. With most of my pack weight distributed upward instead of outward, it's really been better on my back. The top pouch is quite large and useful for your small odds and ends you don't want swimming around in your main compartment, and if your forecast doesn't call for rain you can ditch the rain fly and get even more space to collect trinkets like a friendly raven. The shoulder and waist straps are quite comfortable, although I'll concede the buckles for the waist feel a little cheap compared to the rest of the bag. Also, there is a LOT of extra strap at every adjustment point. Obviously that's good for accommodating all body sizes, but it's still a bit excessive when you're in the woods trailing more tassels than the Ultimate Warrior. All in all, it's a great pack at a solid price with very few smaller shortcomings. It's not the lightest thing in the world, but it's still decent and that added weight comes in the form of features you'll be happy to have. I can see having this for another 8-10 years until I buy whatever the next generation version happens to be.
Age:35–44
Weight:200–225 lbs.
Height:6'1"
Yes , I recommend this product
Joseph Freshwater
Minnesota
This is the right back
4 years ago
i love this backpack. it feels super light and fitting to my form makes walks easy. made a nice choice in it.
Age:35–44
Weight:250–275 lbs.
Height:5'8"
Yes , I recommend this product
Anonymous
Buy a different pack
4 years ago
I haven't even gotten to use this pack yet. I was in the process of adjusting the straps and.....don't make the mistake of fully extending the adjustable hip straps. When fully extended, they don't go back into the pack while the frame is in the pack. Guess what? Taking the frame out of the pack and putting it back in is an absolute nightmare. It's an hour endeavor getting it back into the pack properly. Prepare to swear at your backpack. Bonus, the fit in the frame pocket is so tight that the seam by the zipper ripped when rezipping! Would not buy again. Usually a big fan of Osprey but this pack has been a huge frustration and I haven't even taken it outside yet.
Originally posted on Osprey
ac13098
SC
great weekend pack
4 years ago
Bought this pack for weekend backpacking trips it is extremely comfortable, adjustable and versatile.
Age:18–24
Weight:150–175 lbs.
Yes , I recommend this product
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