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  • Osprey Packs - Argon 70 Backpack - 4272-4638cu in -

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  • Osprey Packs - Argon 70 Backpack - 4272-4638cu in -

Osprey Packs Argon 70 Backpack - 4272-4638cu in

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15 Reviews


Make comfort a priority. Hit the trail with the Osprey Argon 70 Backpack.

Osprey loaded the Argon 70 Backpack with every plush feature the company could think of, from an ultra-padded waist-belt to an integrated hydration system. Two aluminum stays and a molded back panel increase comfort when you load up every bit of the Argon 70 Backpack's 4500cu inch cargo space.

  • ReCurve suspension features an HDPE framesheet, two aluminum stays, and dual aluminum rods for the active transfer of weight to your hips
  • AirScape back panel features three different foam sections for plush comfort and an integrated air chimney for supreme ventilation
  • BioForm CM A/X hip-belt features thermo-moldable foam so you can dial in the perfect fit (for info on custom molding: www.ospreypacks.com/en/web/custom_molding)
  • Removable AquaSource hydration sleeve converts to a hydration pack for summit bids (water bladder not included)
  • Removable top lid converts to a lumbar pack for day-treks
  • Integrated load-lifter straps let you pull your load against your back for improved control and stability over uneven terrain
  • Interchangeable, dual-density shoulder straps easily adjust to fit both men's and women's frames
  • Top-loading access point makes packing easy, zippered side-access port lets you get to gear without having to unpack and repack everything
  • StraightJacket compression wings let you adjust the pack's volume for carrying different-sized loads
  • Osprey's recommended load range: 50 to 70 pounds
  • X-Large variant comes standard with size Large belt and harness
  • Item #OSP0049

Tech Specs

40D nylon, silicon coating
aluminum stays, HDPE frame sheet
Shoulder Straps
Bioform harness
Sleeping Bag Compartment
Hydration Compatible
Reservoir Included
Detachable Daypack
Detachable Lid
Ice Axe Loops
Trekking Pole Loops
Claimed Weight
[M] 6 lb 1 oz, [L] 6 lb 6 oz, [XL] 6 lb 7 oz
33.5 x 14 x 13 in
[M] 4272 cu in, [L] 4455 cu in, [XL] 4638 cu in
Recommended Use
Manufacturer Warranty

Tech Specs

  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

Mixed Feelings

    Just got back from my trip with this pack. Good amount of volume in this pack. I don't like that the pack only has one water bottle sleeve; you can't depend on there being any running (or standing) water in the creeks in Texas, so having another external pocket for an additional 1.5-2 liters would be ideal. I REALLY don't like the water bladder being inside the main compartment of the pack. I think it is a much better design having an external bladder sleeve like on the new 2013 Xenith and Aether models.

    That being said, the suspension system on this bag is amazing. I had 43 pounds in the pack the first day and it was comfortable. The BioForm CM padding on the hip belt and shoulder straps are significantly more substantial than the IsoForm models.

    All things considered I will definitely return this pack to get the new Xenith series from Osprey. The the Xenith 75 M weighs in at a full pound lighter, and has the two external water bottle pockets and the external water bladder sleeve. I do love the color though... wish they had Kelp Green on the new packs...

    Mixed Feelings

    More of a comment.. haven't used my pack yet.

      Got it for $279 at moosejaw, haven't used it yet unfortunately, BUT just a word of advice. If you're considering the Kelp Green, thoroughly google search pics of the pack or find a brick and mortar place that has this one available to see in person, because the color in this picture may be misleading. It's still nice, but a little different that's all.

      The Cadillac of Backpacks

        Picked up this pack in July 2009 for a 5 day hike along the Berg Lake Trail in BC, Canada. I'm 5'9" and weigh in at 170 lbs; I had this pack loaded up with 50 lbs on day one, and it felt like a dream.
        IMO, the Argon has the best suspension of any pack on the market. If carrying heavy loads over long hikes is what you do, then this pack won't disappoint.

        Other features I loved:
        1. The removable lid and hydration sleeve were great for day hikes out of base.
        2. Lots of compression straps for tightening up your load
        3. The WARRANTY is hands down the best on the market; if you break it, Osprey will fix it, no matter what!

        1. Make no mistake, this is a heavy pack. If you're a fast and light, gram conscious hiker, this is NOT the pack for you.
        2. no pockets on the hit belt.

        All in all, this is the best expedition pack I have ever used, providing unmatched load bearing capability and comfort.
        As always, fit is key, so be sure to get measured up properly. Happy Backpacking!

        great pack for big guys

          this pack has been great i had originally purchased the atmos 65 but as a larger guy the atmos did not fit nearly as well as the argon 70. this pack holds more gear than i have ever needed. this pack easily will carry what you need for a 4-5 day camp trip when packed properly. i like that the lid converts to a hip pack. the hip belt can me custom heat molded which make this pack even better. the one thing i with is that it came in the apple green color that the atmos comes in. the argon has a similar vent system as the atmos. if osprey could combine the atmos vent system with the argon this pack would be untouchable. i really like that it is narrower across the back giving great arm mobility. the frame fits great with the curve of the back and puts the wt. of the pack comfortably on the lumbar pad. i recommend this pack for all larger guys out there looking for a pack as i have found this pack to fit nicely being a big guy myself (6'3 torso 24" and a hip of 40")

          Gear Swallower

            Great pack for long hauls. The suspension is fantastic, the aluminum stays along the outside plus the straps ensure the your load stays close to your body for ultra-efficiency. This is a luxury pack with lots of extras (maybe too many for this guy) like the removable bladder pouch, heavy padding on removable lumbar pack, and plastic coating on zipper pulls. Not a light pack out of the box, but if you cut weight other places it is worth it. I got the Large and it will easily (even comfortably!) haul 50lbs. This bag just seems to swallow any gear you throw in it like Mary Poppin's carpetbag. The only real warning I have is the color, I got the Mustard Yellow. Let me just say that I guide for youth and need to teach them to beware of dehydration and the color of my pack will be a perfect example of what color their pee should not be! (Learning oportunity!!)

            Worthy Investment

              Well built and great quality. Very comfortable in various types of terrain. I needed to get a smaller lumbar support and Backcountry was great with the exchange. I tried on various different packs and read countless reviews(literally) before I purchased the Argon pack. I have used this pack for a year on several trips and have been very pleased with the performance.

              Worthy Investment

              Expedition Ready

                The suspension is like a dream, but lets be real 50+ pounds can't ever feal good. This pack will handle that load and you won't be in pain. It has great features like the detachable hydration sleeve, lid pocket/lumbar pack, straight jacket compression system, three access points to the main compartment, two side pockets(one is great for a water bottle, but the other is hard to reach while wearing), a mesh front pocket, and plenty of places to strap on external gear. I can tell you that this pack is well made, has total adjustability with torso length and different sized hip belts, a clever versatile design with usefull features, and the suspension for expedition sized loads. You can't ask for much more.

                Wow, I love this pack!

                  I love this pack. I was looking for the best pack I could get for extended trips, and this is it. This feature rich pack has everything one needs in a pack (minus an included rain cover). The pack is somewhat comfortable at first, but after a bit of time with it on it really molds to your back. I do not regret this purchase one bit. I got the Kemp colour and I absolutely love it. Way better then the mustard, that's for sure.bottom line, fully recommended, without a doubt a great purchase.

                  The Mother of all Packs

                    This pack is amazing! I have only taken it out a few times with loads in the 40-55 lb range and it hardly felt like I had any weight in my pack. The way the suspension system works is truly incredible. The usual pressure points that bugged after a few hours of hiking with heavy loads are non-existent! Don't wait, buy this pack today and you will never regret it!!!

                    SWEET PACK!!!

                      if you want a pack that will carry all your goodies in ultra comfort, the argon is a tasty choice!
                      i've hauled this beauty through some tough and sketchy terrain throughout the canadian rockies and i am extremely impressed with the quality, durability and comfort that it offers! it has held up amazingly after being scraped by trees, thrown on sharp rocks and exposed to harsh weather... even after all that, it still looks as if i had just purchased it! a big high 5 to the crew @ osprey for making such a great product!

                      Big hauler

                        The suspension is pretty awesome. It's a very comfortable pack for trips where I'm hauling more than I need to. I haven't tried using the top as a lumbar pack, but I have pulled out the bladder sleeve to use as a basic hydration pack for side hikes. Good design, works well. Lots of access to the main compartment, and it has just enough pockets. Not too many so you rummage all over, but enough that you can compartmentalize efficiently.

                        Definitely not a light pack, but it's the one for more than a weekend, for winter trips, or trips where I need the volume for a bear canister. I'll probably pick up a lighter pack for weekend trips, though. Got my eye on an Exos.

                        A truly excellent product

                          This is easily one of the best purchases I have ever made. I have had an Osprey Finesse Carbon Ripstop (very similar to the Argon but older and slightly smaller) for about 12 years (!) now. During this time, it has been manhandled by angry baggage handlers from Bangkok to Munich, climbed a total of 6 14ers in Colorado, been hucked around on my back on snowboard trips (while riding mind you), saved me from a tree well in Purgatory Durango I once fell into, carried my laundry up and down a mountain on my mountain bike when I didn't have a car, gone skateboarding through Tokyo, on business trips galore holding everything from suits to really heavy marketing material. Back in college it even carried a puppy for a day when I didn't want to live it alone and hid him inside the pack with some doggie food and my books.
                          I bought this thing back in 1996 and rest assured, I have absolutely no regrets. It is still as tough as it ever was. I broke one of the plastic snaps on it down in Mexico once but the thing is built with so many backups snaps that you can always find another way to rig it.
                          Did I mention that it is still the thing I reach for, pretty much anytime I am going anywhere?

                          Sweet Pack

                            It took me a full day on the trail with a 60lb load to get it adjusted correctly but after much trial and error I've got it dialed! I went to a brick and morter retailer who didn't carry this pack but the next size up, I think it was 85l. The suspension is the same on both packs so I was able to get fitted before ordering from backcountry.com. I've only done 2 3-day trips since purchasing this pack but I'm very pleased. The option to remove the top of the pack and use it as a fanny pack (I hate fanny packs) turned out to be very convenient for some side-trip scrambling near camp. Ditto with the hydration pack. The pockets are convenient and the whole thing very well made. I would buy this pack again, for sure.

                            Righteous Pack!

                              I just got back from a seven day trip in the Bob Marshall wilderness in NW Montana. I started with a 55 lb load and was TOTALLY IMPRESSED by this pack's performance. The suspension on the Argon has a level of adjustability that eliminated my usual pressure points. After a day of dialing it in, it became an extension of my body: very helpful when walking narrow game trails on scree fields. I also noted that there was no "internal frame sag syndrome" regardless of the terrain. As a professional guide I carried a number of internal frame packs, but nothing on the market IMHO can tough the Argon. My only wish? Just one more external pocket!

                              Special thanks to Justin and the crew at Backcountry. After an oversight in the order they went way beyond the call to not only get me my gear on time, but to satisfy me. I'm now a life-time BC customer...

                              backpacking in 11 countries in 11 months,...

                              backpacking in 11 countries in 11 months, wont always be on a trail but will be living out of a back pack none the less. I'm trying to decide between this and the gregory baltoro. Any opinions or advise?

                              I am debating on getting either the Argon...

                              I am debating on getting either the Argon 70 or the Aether 70. I like the way the Argon is set up much better than the Aether having tried on both at a local retail store. I also like the color scheme better in the Argon. The key factor in not pulling the trigger on the Argon so far has been the fact that it is rougly a full pound heavier than the Aether. Up until this point I have been very carefull of every ounce that I put in my Atmos 65 for long hikes on the AT. After alot of research I have found several websites with varying weights on both packs. The most recent one put the Aether at 5Lbs and the Argon at 5Lbs 8ozs. This seems like an easier pill to swallow if it turns out to be the case. Can anyone confirm or deny these weights? Thanks in advance.

                              You should really just go straight to the source for that sort of info- http://www.ospreypacks.com/

                              I'm going to go ahead and use the Large and Medium sizes on the Argons and Aethers for comparison, but generally, the Argons run about 1lb+ or so more than the same size in the Aethers.

                              Argon L= 6lbs 6oz
                              Aether L= 5lbs 2oz

                              Argon M= 6lbs 1oz
                              Aether M= 4lbs 15oz

                              These are Osprey's official specs.

                              Actually, by the Osprey website, the weights are Argon 70 M = 6/1 vs. Aether 70 M = 4/15, and Argon 70 L = 6/6 vs. Aether 70 L = 5/2.

                              There is difference, but the benefit is additional comfort in padding and suspension. Both are great choices, but the additional weight of the Argon might be more than you are looking for!

                              I'm convinced, after weeks and weeks of...

                              I'm convinced, after weeks and weeks of research, the Argon is the back for me. I have one question I can't figure out... If I wanted to use this pack for hunting as well as backpacking does anyone know if the 70 is big enough for an Elk quarter or should I get the 85?
                              Thanks in advance

                              Just bought the pack and I want to know...

                              Just bought the pack and I want to know if I can (or need to) treat it to prevent dirt from grinding into the clean open pours of the new fabric. I have the Nikwax UV proof but the only other protectors they have are for waterproofing. I am not after waterproofing unless it will help protect the fabric. What product can you recommend to protect the new fabric?

                              Best Answer

                              Jonathan, I don't usually treat my packs with anything but both of those products work well and would maybe help some. Bottom line, if you use your pack it is going to get dirty and there isn't much you can do about it.

                              Would this pack do alright for some weekend...

                              Would this pack do alright for some weekend mountaineering? 3-4 days max with no technical climbing (just crampons, ice axe, etc)

                              This pack would do alright for some basic mountaineering. A word of caution though: the curved back and frame of this pack place the majority of the weight a few extra inches away from your natural center of balance and can make scrambling and moving around objects a bit awkward. I'm sure that with practice, you can get used to this and make the necessary adjustments. It will however, feel a bit bigger and less snug to your back than other backpacks. Other than that, its a great pack and caries a heavy load quite well. Hope this helps!

                              OK, after 3 micro disc surgeries, PT,inversion...

                              OK, after 3 micro disc surgeries, PT,inversion table, Loratab 10s, Morphine 30's,etc,etc, If money is not the object, is there a pack out there for 3-10 day stints that would be my best bet? I've had Lowe, MountainSmith, Kelty, Peak 1. I usually stay under 45#'s. Any help would be appreciated.

                              Best Answer

                              Quite the list. I know the lite version myself.

                              If you're looking for 70L, a lighter pack is the Osprey Aether 70, a little bigger would be the Aether 85. The Argon series are heavier duty, but also just plain heavier. You should also look at the Arcteryx Altra 75. In your situation, you should really try on any pack you're considering and test it out with some weight first. If you're going to order online, and don't have anywhere local to fit the packs you're interested in, order up a few candidates at once, choose what feels and works best, return the others. BC won't give you any problems, and you'll know right away which one is going to be most comfortable.

                              Hi i have the Osprey argon 70 but lost the...

                              Hi i have the Osprey argon 70 but lost the hydration pack and holder along with the 2 straps, any1 know where i can get hold of some spares thank you!

                              Best Answer

                              I would try to contact Osprey.

                              Osprey US Customer Service is open from 8:00 a.m. - 5:00 p.m., Monday - Friday, Mountain Time. Call toll free 866-284-7830 and one of our expert customer service folks will get back to you. We pride ourselves in providing real help from real people.

                              Or if you need to contact us in off-hours or prefer email contact us at cs@ospreypacks.com and a real person will get back to you!

                              Does anyone have an opinion on the jansport...

                              Does anyone have an opinion on the jansport big bear 68, 78 or 82? Why should I spend the extra money for an osprey? Is it that much better? I've never used either and am guessing the osprey is better quality and suspension.. longer lasting easier to carry.. ?? Will I regret it half way up the mountain or 5 yrs from now?

                              Best Answer

                              The extra money spent on an osprey goes into the durability and comfort. I've only used this pack a couple of times; but the quality of suspension is absolutely amazing. If you take care of it, it'll last you many many years. Jansport also makes a good pack, but if you're just now getting into backpacking - take purchasing a pack as an investment. While the jansport may be less expensive, its far less comfortable as well. If you're comfortable when hiking for multiple days, you'll be more focused on your environment and not your aching shoulders. A better backpack makes it more enjoyable and results in more trips!

                              You pay more for Osprey for their "ALL MIGHTY GUARANTEE." Osprey will repair for ANY REASON, free of charge, any damage or defect in their product – whether it was purchased in 1974 or yesterday. If they are unable to perform a functional repair on your pack, they will happily replace it.

                              You won't find a better warranty on the market! Well worth the extra bucks if you ask me.

                              I have both an Argon 110 and an older Jansport Rockies 100. Both of them carry way more than I want to anymore, but I can honestly tell you that the Osprey is considerably more comfortable than the S-Curve suspension on my Jansport. So, from that standpoint, you'll be happy. On the other hand, I really miss the convenience of all the external pockets that Jansport packs offer. Both manufacturers have excellent lifetime warranties, and equally responsive and top-notch customer service. However, as knanier mentions, what you're paying for is the quality of the materials, construction, and suspension that goes into a pack that will serve you well for many years. I'm about to turn 49 in a couple days, and just walked in the door from 50 grueling miles, and right this very minute, it's safe to say that comfort easily wins out over handy places to stash stuff. Hope that helped.

                              Please do spend the extra $$$ it takes to get the osprey. You wont regret it. I recently purchased an Aether after wasting $$$ on cheaper packs. Buy the good one first time out and it will be cheaper in the long run. Plus you will enjoy your time in the backcountry and you can focus on nature, not your aching shoulders/back/neck!! Enjoy:)

                              Is the weight on the large pack really 6lb...

                              Is the weight on the large pack really 6lb 11oz.

                              Best Answer

                              Not quite, it's 6lbs 6oz. It's the internal backsheet and the heavier suspension that does it. As I recall, knanier laid out the differences between the Argon and the Aether pretty well, so unless you need the Argon's suspension system, that might be the way to go at 5lbs 2oz. The Aether series is also Osprey's best selling line. Might check out the Arcteryx Altra 65 and 75 if you want a great suspension system, and can handle the price tag.

                              Write your question here...So, i need a...

                              Write your question here...So, i need a backpacking backpack but I'm not sure what size to get. I'm 6' and 190 lbs. Can you give me some advise?

                              Best Answer

                              You really need to have your back measured. Height and weight alone wont determine it...its more about the length of your spine. If I'd had to guess, I'd say you'd be pretty close to a medium, maybe a large if you've got a long torso and shorter legs.

                              Hi Guys, I've been drooling over this pack...

                              Hi Guys, I've been drooling over this pack for the last year. Now that I'm employeed again, I can afford it, but my question is should I spend the extra few bucks and get the 85 instead of the 70? I'm new into backpacking, and don't plan on doing much more than 3-5 days at a time. I'm asking this because I don't want to regret the buying the 70. Thanks

                              Best Answer

                              You should be just fine in the 70. Unless your doing weeks at a time and/or expedition mountaineering, I think you'll be happier with the 70. If you really do end up needing the extra space, backcountry.com has an unlimited lifetime return policy so you can always use that if you want to switch. But if you pack reasonably the 70 would really be just fine! Another thing to consider is the black hole theory, which suggests that people have a tendency to fill their packs - if you have the extra 15 liters, you'll probably use it and thus consistently carry more weight! Hope this helps!

                              I'm 6ft., 180lbs with about an 18"torso....

                              I'm 6ft., 180lbs with about an 18"torso. Trying to decide between the Argon 70 and 85. I'm thinking a medium will work but can I get the 70 in a L with a medium suspension to increase the capacity. Just not sure I need to go from 4300cu.in. to 5100. Wish they made an 80. Also what is the differences in the 70 and 85 other than the obviuos capacity. Is the suspension and the pocket configuration exactly the same.

                              Best Answer

                              I'm fairly certain the sizes, in all of the models, are all dependent on torso length. I think this means you would still need a medium size 70L to fit your torso properly. If you need the extra capacity, get the 85; it's the exact same pack as the 70; just a larger packbag.

                              Does the Argon 70 have the front zippered...

                              Does the Argon 70 have the front zippered pocket on it like the Argon 85?

                              Write your question here...Why do I see...

                              Write your question here...Why do I see in an Osprey brochure that the Argon (Medium) is 4300 cu.in. but then here I see it listed at 4500 cu. in.

                              Best Answer

                              Brad - the Osprey 70 has 3 sizes, the medium, large, and XL.

                              The medium is 4300 cu in, the large is 4500 cu in, and the extra large is 4700 cu in. Our tech specs on the right size of the page matches with the same information that Osprey provides on their site:


                              If I'm planning on week long or a little...

                              If I'm planning on week long or a little longer than week long backpack trips as-well as over-seas travel... I'm deciding between the 70 and the 85, but I can't decide. I haven't backpacked for probably 5 years but I imagine I would pack light with some more experience. Is it necessary to get the 85? Is it that much bigger?

                              Best Answer

                              instead of looking at how long you'll be gone, look at how much weight you're putting into the pack. you can find packs with similar capacity that'll weigh a pound or two less (like an Aether 85 that only weighs 4 lbs 12 ounces instead of the Argon that weighs 6 lbs 4 ounces for a medium)

                              if you're toting 45 or 50+ lbs this might be the best bet though

                              Besides your single one-week trip, do you plan on doing more backpacking in general?

                              If so, and If I were making this decision I would try to determine whether I would realistically be doing more week long trips or more 3-4 day trips with the occasional week-long excursion.

                              If the week long trips are the exception, rather than the rule, you could also get an Osprey Daylight accessory pack and then your 4,300-4,700 cu in pack becomes a 5,000-5,400 cu in pack with a very conveniently detachable summit pack.

                              I'm gonna be doing exactly this with my new Argon and Daylight packs when I go to Whitney this September. Maybe I'll let you know how it worked out when I get back.

                              What season would u use this pack for and...

                              What season would u use this pack for and is the pack to big for backpacking for two days.

                              Does backcountry allow orders of a large...

                              Does backcountry allow orders of a large pack with a medium hipbelt?

                              If the belt has not seen the outdoors Osprey will do a component swap with you. It cost about 5 dollar and some change to send the large belt in and they send you a medium one free. (just to be sure you get the best one I would check the sizing at the local dealer and make sure they also can heat mold it too.) I took about two weeks for them to ship me a new one.

                              im 6 4 with a 23 in torso will the argon...

                              im 6 4 with a 23 in torso will the argon 70 XL work for me?

                              No. As bad a practice as fitting a backpack without trying it on with a professional around or someone else who knows how to fit a pack, I would recommend the Large. I'm taller (longer legged) than you with about the same torso length and I use a Large in the Argon and the Aether 70 (my main pack and back up pack).