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For when your life is on the trail for weeks at a time.

Keep cool on your way to base camp when you put your shoulders beneath the breathable suspension of the Arc'teryx Altra 75 Backpack. This expandable pack features expedition-worthy capacity, luxurious suspension, and durable materials that are ready to hold up to a few dozen trips out of Kathmandu.
  • Occipital cavity allows movement of the head so you don't feel like you're in a neck brace
  • Adjust the Advanced Composite Construction suspension system to dial in a precise fit
  • GridLock shoulder strap adjustment system lets you custom fit the pack the way you want it
  • Breathable foam shoulder straps, hip-belt, and back panel feature Spacermesh and promote evaporative cooling when weighed down in warm weather
  • Triple-density hip-belt pivots on the Load Transfer Disc as you travel the unpredictable trail and removes to trim weight
  • Two removable aluminum stays support the fully loaded pack as you rock-hop down the mountain
  • U-shaped panel front access loads and unloads like a duffel bag so you can break camp early
  • Top lid and collar extend to offer 427cu in (7L) of additional space
  • Four compression straps with padded wings let you attach sleeping pads or jackets to the outside of the pack

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Arc'teryx Altra Backpack 75 - Men's - 4577-5248cu in

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Here's what others have to say...

3 5

Pain to load

  • Familiarity: I've used it several times

Great pack and fit - if you can load it correctly. Also, the location of the hydration bladder is absolutely moronic. Epic fail. Especially for a pack which relies heavily on an even load. If its not loaded correctly, because of the awesome pivoting hipbelt, one of your shoulders will feel most of the weight after a short time. Not my favorite - hopefully the updated version has solved some of these problems.

5 5

Great Pack

  • Gender: Male

I really enjoy this pack, after using it several times I'll tell you what I've found. The only problem I have with it is the location of the water bladder holder and that it is somewhat limited to which brands of bladders you buy. In really cold weather the heat from your back doesn't keep the water from potentially freezing. That being said most people don't go backpacking in sub freezing conditions often. I like the adjustment on the shoulder straps. If you have a body type like mine you need something much wider than other brands offer. This pack is very easy to adjust. It seems like you can fit more into than what it's rated for also. I like that I can bring tent, bag, clothes all it one thing for myself and someone else if I needed to. The hip belt and supports are so comfortable that it doesn't feel like it's as heavy as it is, even after miles and days. I was thinking of getting a dueter instead but I am extremely satisfied with this BackPack. Overall very very well built, for someone with a little wider, bulkier body type. I don't know how it'd do for someone that was slender.

5 5

Thoughts after two trips

I'm really happy with this backpack after a 4 day hike on Iceland and a couple of trips to the local wilderness. Switched to the Altra from a Bora 95 as I couldn't get it to fit me.
The pivoting belt makes it is to move in all kinds of terrain. Just make sure you pack the heavy stuff towards the bottom or else the pack is gonna feel unstable.
- Great fit for tall guys "6,6 / 196cm"
- GridLock will help you get a perfect fir (can|t give it enough praise)
- U-shapes makes it easy to empty at campsites.
- Lots of air on you back. Only contact points are Gridlock and belt.
- Good compression.

Minor Minus
- The hydration bladder has its own room at the side of the pack, makes it unstable.
- Some care is needed when packing or else the pivot belt is gonna make it unstable.
- The belt is very stiff so you can't lay the pack on it's back to access the U-shaped opening easily.

The GridLock alone is enough to get me to buy this again.
Hard to please a gear geek, but this is a close to perfect as I expect to come.

I am a 5' 4" woman, and I was wondering...

Posted on

I am a 5' 4" woman, and I was wondering if this pack would fit me?

Responded on

Check out the sizing chart, right below the option menu, for torso length to see if it will fit. You could probably fit IN this pack, as it's got quite a lot of volume. There is a women specific version of this pack called the Altra 62. It's got a shorter torso length and slightly different angles on the shoulder harness and hip belt. The 62 litres should be enough to accommodate most trips of a week plus.

How do you adjust the shoulder harness on...

Posted on

How do you adjust the shoulder harness on the Altra?

Best Answer Responded on

Hi Sarah,

It's a combination of velcro sheets and slotted tabs. A picture being worth 1000 words, it's best if you watch the video. When the link for the Altra 75 page opens up, go to the last video on the bottom right and you'll see everything you need to know. You can adjust it in, out, up, down, until you get the fit just right.

4 5

Good But Not Great

I have had this backpack since it was released about a year and half ago. I really liked the pack initially but I have a few gripes now after using it for long treks in harsh conditions. Let me begin with the positive aspects. This pack is built better than any other pack that I have used, it is a tank and can take very big loads. The suspension is on par with other load hauling packs and seems to support as much weight as you can put in it. The pack is all around more water resistant in comparison to the ospreys and gregorys that I have used. I left the pack out in a torrential rain one night and all the things in the pack were dry the next morning, I was quite impressed. The feature set is very nice with zippers that allow the bag to be opened like a duffle, also there are three compartments on the lid of the pack wich come in handy. The stuff pocket on the back is huge and fully zippered. Okay now for the downsides. The packs rotating hipbelt does not work as it should. It rotates to far clockwise but hardly rotates counter clockwise without popping off. Also the hipbelt has no framing to it like the gregorys do, it is simply a peice of thermoformed foam. The hipbelt tends to squeak even when it is lubricated, and dirt collects in the ac2 hipbelt disks. The shoulder pads are nice and can be customized but they could have been stuffed more for greater comfort. Also the mesh material that makes up the water bottle pockets has holes in it now, clearly this should be made of a more durable material. Once dirt get into the facric or coating of the fabric, it is nearly impossible to get out, making the pack hard to clean. Overall I feel like useless features like the compression wings and multitude of zippers on the duffle opening could have been removed and that removed weight could have gone into improving the comfort of the pack with a better hipbelt and more cushion. Overall I feel that for the price this pack should meet my every standard. I suggest the much cheaper option of the gregory baltoro.

4 5

a decent pack

The suspension system can really handle a heavy load. I had around 60+ lbs in mine and was able to navigate the hillsides with relative ease. The only real problem i had was the hip suspension belt tends to tilt the load to either side if you are on rough terrain. Rain and this backpack are not friends but it can be fixed with a garbage bag or whatever else u want to throw around it. very roomy and comfortable pack otherwise. my first night using it i had some scrapes and the material as light and thin as it is in some areas didn't rip or tear. But overall comfort and feel this pack is amazing.
pro's- a comfortable sturdy pack, the hipbelt is great on a normal hike or trail, can handle a heavy load and put it where it needs to be.

con's- Price. zippers are a little leaky in stormy weather, tends to tilt if your load is too heavy due to the swivel in hip belt, suspension system can be a bit tricky to get just right.

5 5

Attention to detail

Recently bought the Altra 75. Fitting was a breeze using Arcteryx' online guide. This is a big pack, but the straps allow you to reduce the volume down nicely. Underloaded, Overloaded (yeah right), it balances well. Access is easy, and has a lot of options to organize and get to your gear, whitout having a buzillion pockets. The swiveling hip belt helps a lot with scrambles. I found my lifetime pack.

5 5

Thumbs up!

I just recieved my pack (Raven tall) yesterday and after a shake-down of all the features I'd have to say this is one of the best large volume packs I've come across.

I have not yet had the pleasure of abusing this pack with my gear and the envoirnment, but I do believe this pack will be able to handle everything I throw at it! This is a cavernous top loader with a suitcase style U shaped zip panel for easy access to the inside echo chamber. Adjustable shoulder straps - vertical and horizontal. One of the most comfortable hip-belts... and on, and on.

I was able to load my climbing gear (harness, protection and a 70 meter climbing rope), sleeping bag, ENO One-Link DoubleNest hammock system, cooking gear (stove and pot), clothes, food container, water treatment, jacket, and a few other odds and ins inside this pack with room to spare. 50 plus pounds and this pack did not even flinch after a quick cinch down on the compression straps.

I do believe that I will be enjoying this pack for quite some time. Thank you Arc'Teryx for a fine product. Also, thank you backcountry for great service.

Juan de Fuca

Juan de Fuca

Posted on

First hike with the altra 75 at Juan de Fuca Trail Vancouver Island, British Columbia

How do you attach an ice axe, trekking...

Posted on

How do you attach an ice axe, trekking poles, shovel and other similar sized tools? Use the side pocket and tighten with the side compression straps? Doesn't seem safe with the ice axe particularly. Any info will help, as this could be a make or break the deal. Thanks!

Best Answer Responded on

There are no ice axe loops with the Altra-the altra was designed as a summer pack-not mountaineering/general purpose. There are small daisy chains that you could attach ice axe loops to-but they werent specifically designed for that. And your ice axe/tools would dangle off weirdly. And you would have to buy the ice axe keepers or take them off another pack you own. Unfortunately, arc'teryx doesnt make a good all around pack at this time-the Altra doesnt replace the bora as a good, all around pack.
for a shovel-you would have to rig the daisy chains some how. Best bet-go with the Arrakis.

Responded on

I have the Altra 75 pack and improvised a little here...happened to have 8" cable ties (purchased at Home Depot) and fastened a ice axe loop to one of the lower openings in the daisy chains located at the bottom of each side of the pack. For now, I have the side compression straps holding the shafts in place. This is a very light weight solution and should work fine. I do have two ice axe holders coming from Arc'teryx and will use those to fasten the shafts to the upper daisy chains located on each side of the upper area of the pack.

When will the Fireweed Tall be available...

Posted on

When will the Fireweed Tall be available for purchase?

Responded on

It's in stock now.

What other colors are available? I prefer...

Posted on

What other colors are available? I prefer other than black.

Responded on

Also comes in Fireweed, but is currently sold out, the Arc'teryx Altra 65 is in stock in Copper
(see the Axios 48 or 33 for the Fireweed color)

Was wondering if anyone can comment on the...

Posted on

Was wondering if anyone can comment on the suspension of this pack. How does it compare to a Bora or a Gregory Baltoro. And how is the durability of this pack compared to the other two packs.

Responded on

Here's a review from Backpacker that might give you some insight on the suspension of the Altra. The fabric is a bit less durable than the Bora, but also about 2lbs lighter in overall weight.

Best Answer Responded on

The Backpacker review is pretty much fluff. Here's what you need to know:

I'm a six year Bora owner, and I love it. Carries better than any pack I've owned. That being said, the Altra suspension (used first on the Naos) is superior, hands down. It puts that weight in the small of your back, spreads it onto my narrow hips, and is downright comfy.

That being said, loads over 50-55 pounds, I might still use my Bora. And the material on the new Altra is definitely less durable (and not waterproof) than the Bora. It's another $50 and 9 ounces for the Arcteryx pack raincover, fyi. And as the Backpacker written review correctly points out, the zippers on the main Altra U compartment are not waterproof. This was a mistake, and I bet Arcteryx fixes that within 1-3 years.

Also, the Altra lid is not removeable to make a fanny pack, like the Bora. Still, I have my Altra on order: the suspension is THAT good and the weight savings are substantial. But my Bora will keep a place of honor and cannot be replaced for its overall durability.

Responded on

I got my Altra 75 in last week. There are some cool features not included in the backpacker review (that I can remember). Main one being the placement of the hydration reservoir which has it's own compartment on the side, accessed through the main U shaped zipper on the back. You could actually refill this one without taking everything out of your pack... I agree with the other comment, I plan to keep my Bora since it still feels more sturdy for really heavy loads, but the Altra is way cool...

Unanswered Question

Do you have the arcteryx altra 75 pack in...

Posted on

Do you have the arcteryx altra 75 pack in size tall? I'm looking for this pack and would like to purchase through backcountry if you have the size im looking for or will have it soon?