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For multi-day trips or light-packing weeklong hauls into the backcountry.

Save energy and keep your trek into the backcountry light with the Arc'teryx Men's Altra 65 Backpack. Ideal for multi-day or weeklong backpacking adventures, the Altra expands and compresses to the size you need while also providing the comfort, support, and stability you require when you're slogging up a scree-covered rock field or a steep trail to high-mountain lakes.

  • C² (composite construction) system's minimized construction lamination decreases pack weight and makes the pack sit close to the body, which minimizes load movement and backward pull and increases energy conservation
  • Load Transfer Disc naturally moves with your body while distributing the pack's load weight to your hips for improved comfort
  • GridLock shoulder straps adjust for both height and width
  • Ergonomically shaped shoulder straps feature 500D nylon with silicone-treated PU fabric for durability and protection, a Hypercell foam for stability and comfort, and SpacerMesh lining for airflow
  • Twin 6005 T-6 extruded aluminum M-bar stays are rigid and lightweight to provide structural support
  • Back panel consists of HD 80 foam for support and structure, burly double-weave fabric offers strength and durability, and the back panel sits away from your back to boost ventilation
  • Altra 65L is available in regular and tall and works as a fast-and-light pack for multi-day trips in the backcountry
  • U-shaped zipper offers easy access to your gear
  • Extendable top lid and extension collar enable you to carry larger loads
  • Body fabric consists of 210D nylon ripstop fabric coated with silicone to shed moisture and provide durability and tear-resistance
  • 500D nylon silicone-treated PU fabric in high-wear areas supplies extreme durability and resists dirt, snow, and water pick-up
  • Extension collar features 100D nylon mini ripstop fabric that has incredible tear resistance and a silicone coating that sheds moisture
  • Hydration compatible (bladder not included) with a hydration sleeve external access point for convenience
  • Wingman pockets make it easy to grab your camera or headlamp one-handed
  • Double-chamber top lid organizes your gear
  • Large front kangaroo pocket stashes frequently used items

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Arc'teryx Altra 65 Backpack - Men's - 3965-4148cu in

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Here's what others have to say...

Where is the Altra 65 Backpack manufactured?

Made in the Philippines (according to the tag in the main compartment). This is based on a Diablo Red Altra 65 in Reg/Tall size purchased just a couple of months ago from Backcountry.

5 5

awesome item

  • Familiarity: I've used it several times

light weight and fashion design
pricey item

5 5

Great pack, check sizing options.

  • Familiarity: I returned this product before using it

This pack is simply amazing. It has many adjustable features allowing you to tailor the fit perfectly. However, do be aware of the hip belt sizing options. I ordered the short/regular pack and received a small sized hip belt. is unable to exchange the belt and will require you to deal with artery'x directly.

5 5


  • Familiarity: I've used it once or twice and have initial impressions

perfect light and everything

5 5

Best pack ever!!??

  • Familiarity: I've used it several times

I'm 5'6 150 and ordered a small reg. The fit was spot on. The rotating hip belt is what makes this pack great and the padding wasn't overly hard but very comfortable. I walk with my hips. When you walk with this pack the hip belt moves with your hips and the pack stays put to your back. No swaying back and forth. I didn't feel like I was going to tip over while doing some light scrambling or when going up steep inclines. Several reviews people have complained about squeaking from the shoulder harness to the hip belt. I added a decent amount of synthetic grease and no more squeaking. Even when there was a slight noise coming from the pack it still doesn't change how comfortable the pack is. There is tons of space and the wing pockets make it easy to fit my Nalgene bottle as well as other decent size items. My platypus big zip 3L fit in the main water compartment. The Altra 65 price is really steep compared to other brands but I love Arcteryx and def recommend this pack. Don't let the price fool you, it's worth it????

Unanswered Question

Your site lists the Diablo Red in Short and Short/Regular. What's the difference? Does the Short come with a small hipbelt? Thanks!

when will the red model be available in a reg/tall?

Best Answer

We have some on order from Arcteryx right now. Unfortunately, we do not have an exact date as to when they will be coming in, but it should be sometime at the end of the month. Hope this helps.

5 5

Best corporate pack

  • Familiarity: I've put it through the wringer

What a great backpack. The price is a bit much, but once you get your hands on the bag and especially when you load it up I can see the difference. I got this pack to carry my stuff more comfortably and to also haul a few things for others as well. The ergonomics of the pack are amazing. Just lifting the pack from the handle (never the harness!) is ergonomically better than I've seen. It goes on without the shoulder straps all twisted and jumbled. Also, all the straps are handy to reach and the pack is very adjustable. I really think the lid is amazing. So simple yet such an improvement. The workmanship, materials and layout of this pack are just wonderful. I cannot access the zippered wingman pockets with the pack on, but that doesn't matter to me for I use a hydration bladder. The pockets are great though. The hydration pocket is large enough to accommodate my 3 liter bladder and a flat style 750ml bottle of whatever. I really love that I can have this pack quite overloaded, but I don't look like the the Beverly Hillbillies. Everything gets into the pack and is concealed. The compression straps are EXTREMELY effective as well. Some designs improvements for me would be: ditch the zipper as I have only used it to see if it is practical and it's not for me, the draw cord on the "snow collar" isn't sewn in at the top so when I'm overloaded I have to manually move the draw cord up to the top of the collar before cinching it down. That's about it really. I am sending the pack back because over 65lbs and it starts getting pretty uncomfortable. It's a bit surprising to me for I have no problem getting that kind of wt into the 65 yet the suspension is the same for the 65-85. So, I must go with another pack (Kifaru) that is meant to carry heavy loads better. Even the rep at Kifaru almost had me sold on the Altra. If I could only get my weight down it would be great! If you stay under 55 lbs the pack is wonderful. Over that and you may want to look elsewhere. Great pack!

I must agree it seems they are making packs not for over 60 pounds. Arc'teryx & Osprey among others.