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The worst rainstorm hasn't a chance of getting a drop of water on your weekend backcountry gear, when you pack it in the 2690cu inch Arc'teryx Naos 45. Seam-taped VaporTight fabric and a roll-top closure create a completely waterproof barrier. The two front compartments and lid utilize watertight zippers to keep the little stuff dry, as well. Arc'teryx built the Naos 45 Backpack with pre-formed shoulder straps and a pre-formed waist-belt that pivots on a Load Transfer Disk to eliminate chafing while you hike. Top it off with two aluminum stays and an ultralight Monoframe back panel, and the Naos 45 is one amazing overnight backpack. *Available for US shipment only.

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Arc'teryx Naos 45 Backpack - 2500-2870cu in

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Here's what others have to say...

Anybody know of anyone selling one of these...

Anybody know of anyone selling one of these in size short?

Responded on

Hey Albert,

Unfortunately not. I recommend contacting Arc'teryx directly and they should be able to point you in the right direction.

I have two questions. 1.) I do many river...

I have two questions. 1.) I do many river trips and I am tired of carrying my big bulky river duffle. I don't mind a bag two big for me-I'm 5"5'-and I do 12-14 day trips. Should I get the bigger bag or will a manage with the small one? 2.) Does this bag have a role closer thing like a river duffle.

Responded on

The size you need will depend on how much gear you bring and also for how long your trips are. These bags typically have an extra 10L of capacity depending on how you use the roll top closure. Which will answer your other question. It has a roll top closure with snaps, as well as a floating lid that goes on top of that. So depending on your load and the weather you can carry more or less. The bag is completely waterproof so it negates the need for a rain cover. It is also said to be fully submersible (you would need the roll top closure used properly however (2-3 complete rolls). It is certainly a better choice than a duffle bag!

If this is fully submerged in water like...

If this is fully submerged in water like on a river trip will the bag keep my gear dry???????

Please Help!!

Responded on

For a short period of time, but I wouldn't expect it to keep your stuff dry for very long. Even the best waterproof pack won't take a prolonged soak. The more dependable- and common- way to keep your great dry is a waterproof pack liner or dry bag.

So I understand that the outer pockets are...

So I understand that the outer pockets are not 100% water proof.
What about the main compartment? Can it withstand go through a swim in the rapids and keep the stuff inside 100% dry?
Thanks in advance!
P.s. I'm having a hard time getting a consistent answer to this question. Any paddlers on

Responded on

It's as waterproof as any backpack will get. This is your best bet. If you have electronics, use a dry bag.

Responded on

I am a paddler, and the main compartment is just as waterproof as any other dry bag. If the bag is totaly submerged in water for a long period of time water will work it's way in, but it will definately keep your stuff dry if you swin a rapid. Just this past weekend I hiked a trail in North Georgia that had 20 waist deep river crossing on it. On one of the crossing I slipped and fell in the water up to my chest. While I didn't stay in the river long, all of my gear stayed dry.

5 5

Waterproof, stylish and comfortable

This is a great product......I have had it for a week long cross-country tour in the northern part of Sweden, sub-zero weather, in snowstorms as well as biking in heavy rain and my clothing are still dry........It is very comfortable to carry, never any problems from my shoulders etc, but try them out before getting one, one cannot adjust the back that much.......

5 5

Very good pack

I do love my Naos 45. I got it about 3 years ago. It fits my torso very well. I am 6'5" and the tall works great. It carries loads quite excellently. The swively bit, and the hip load distributer in general is great. It just works with my strides so well. It is pretty water resistant. After a recent 15 mile hike in the midst of all-day often-heavy rain: the pack was only wet inside to the extent that i placed wet items inside. Very nice.Here is the only downside, so far: the taping or whatever on the left-hand (large) exterior pocket has disintegrated. It did so not too long after I got it. The other zippers have held up well. I contacted Arcteryx recently about this, and they said to ship it back for them to check out. I haven't done so, yet (can't be without my pack! hehe), but this seems like great, personal, service.

Responded on

How did they handle the problem?

Why the price difference between this and...

Why the price difference between this and the Acrux? They seem pretty similar to me...

Responded on

Nevermind...the price difference is because the Acrux of similar size is on sale...however, is there an advantage to this pack over the Acrux?

Responded on

The Naos has more padding on the back, as well as in the single-piece hip belt, which has a pivot, to reduce chafing. Also, Naos has a couple external pockets.

Responded on

The biggest advantage is the swivel hipbelt. I own the Naos 55, and I can say that the swivel lets the pack move with you, no matter how contorted you become while scrambling over obstacles. It really feels like a part of you. The Acrux uses a conventional fixed hipbelt, so you won't get the same sense of being one with your gear. Nevertheless, I'm sure it's a fine pack.

Hi, I'm 6'1". Do you think I should order...

Hi, I'm 6'1". Do you think I should order a regular or tall? Saludos!

Responded on

6"1" is in the tall range but your torso measurement should be the determining factor. Go to Arcteryx's website and follow the instruction of torso measurements. Your torso length dictates.

Have anyone tried to carry skis on this...

Have anyone tried to carry skis on this backpack? And is this backpack suitable for people on 1.90 meters or taller?

Responded on

I'm not sure about the skis, but I am 1.95 meters (Norwegian/American) and the Arc'Teryx "Long" or "Tall" sizes fit my torso extremely well.

Responded on

The specifications indicates that there is no dedicated ski carry system. but I'm sure it wouldn't be too difficult to use the side compression straps or axe loops to carry the skis.

5 5

Stable, stylie, Waterproof

Took this pack into the High Uintas of Utah over the weekend, and it felt great. I've been carrying an Arc'teryx Bora pack in the mountains for years, and the bora packs feel exceptional, however, they are on the heavier side. Here's the answer from Arc'teryx. The pack feels very close to the bora in terms the way it carries. I'm 5'10", 145lbs and the size regular is perfect. Big enough for a night or two in the summer, but I think I'll stick to my bora for pure backpacking trips. However, This pack will replace my old North Face Patrol pack everywhere else. This is a superb ski touring, day outing, ice climbing size and shape. The unique waist belt system feels great, and really moves with you. This will no be my go2 pack for nearly everything in the mountains!

5 5

This thing is like what mermaids need

So if were a mermaid and I've never been one so this is all speculative - I'd buy one. When I got to land and needed to float to watch handsome beach-princes toss frisbees to dogs and blast gulls with bread crumbs I'd inflate the pack and use it as a flotation device.

Then when I needed to dive back my village I would deflate all air, and put my electronics in the main compartment, diving to 20,000 leagues - with a dry digital camera the whole time.

But I am not a mermaid and at this point it looks like I'll never become one (which sucks) so I will just use this bag for canyoneering and keeping beer dry in the rain.

Responded on

And then you could gather up all the delightful little sea monkeys that you saw, and take them safely back to Salt Lake without having to add any water.