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Made with light, durable materials and featuring a highly adjustable fit, the Arc'teryx Aerios 18 pack carries your day's gear so you can move through the mountains with agility and comfort.

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Features

  • Proprietary Hadronâ„¢ LCP (Liquid Crystal Polymer) grid face fabric is incredibly light and exceptionally durable with abrasion resistance
  • Highly breathable AeroForm pack panel and anti-barrelling framesheet enhance carrying comfort
  • Front bungee compression system and webbing daisy chain provide external carry options
  • 2 trekking pole attachment points
  • Hydration bladder compatible (bladder not included)
  • Hydration bladder clip
  • Hydration port allows for ease of tube passage outside of main compartment
  • Top pocket with key clip; 2 side pockets; internal security pocket with key clip
  • Highly breathable shoulder harness with 2 zippered pockets that accommodate devices or 500 mL soft flasks (not included)
  • Adjustable sternum strap and removable waistbelt
  • Patent-pending 2-point harness adjustment system works at top and bottom for optimal pocket positioning and fit
  • Interchangeable harness system available in 2 sizes for a precise fit across a wide range of body types

Imported.

View the Arc'teryx Aerios Product LineView all Arc'teryx Daypacks

Technical Specs

Best Use

Hiking

Bag Style

Backpack

Frame Type

Frameless

Gear Capacity (L)

18 liters

Gear Capacity (cu. in.)

1,098 cubic inches

Weight

1 lb. 4 oz.

Fits Torso Length (in.)

19 inches

Fits Waist/Hips

25-50 inches

Material(s)

200-denier polyester lining; 210-denier CORDURA nylon 6,6 with 6.5 twisted 200-denier Vectran grid, 165 g/m2 with durable water repellent; 100-denier SD CORDURA nylon 6,6 dobby, 120 g/m2 with DWR FC0

Pack Access

Top

Number of Exterior Pockets

5 + main compartment

Hipbelt

Yes

Hipbelt Pockets

Yes

Raincover Included

No

Reservoir Compatible

Yes

Dimensions

19.2 x 9.4 x 5.7 inches

Gender

Unisex

Buying Advice

Reviews
20 reviews with an average rating of 4.3 out of 5 stars

Ratings Snapshot

Product Rating

12 out of 14 (86%) reviewers recommend this product

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Average Customer Ratings

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use

Customer Images

Canajun Craig
Received free product
Baton Rouge, Louisiana
Rated 4.0 out of 5 stars

Durable and Lightweight daypack

1 year ago

I used my Arc’teryx Aerios 18 Pack on a weekend car camping trip. It was a great size for the several hour day hikes we did. The pack breathes well and helped to keep my back (reasonably) cool in the 100+ degree temps we experienced. The airflow between the pack and my back was great, and definitely something I look for in a day pack. Albeit only an 18L pack, I was easily able to pack enough food, water, bug spray, and first aid supplies for the day hikes I used it for. The reinforced polyester material that the main portion of the pack is made from is lightweight, water resistant, and durable. I actually had this pack strapped to the top of my kayak at one point and despite a few splashes, the contents inside remained bone dry. I also had it overstuffed the first morning I used it and wasn’t at all worried about the material giving out. The padding on the shoulder straps are both breathable and comfortable. The hip belt is just some thin strapping, but at 18L I don’t see the need for a larger one as the pack weight shouldn’t be all that heavy when fully loaded. The only drawback I see in this pack is the lack of a separate pocket/division in the lower part of the bag. Keeping my phone, keys, wallet, and powerbank in the top outer pocket wasn’t an issue when the pack was full, but did cause the pack to sit funny when the main body of the pack was relatively empty. For these heavier & more sensitive items I’d prefer to have an additional pocket at the bottom of the pack.

Age:35–44
Weight:200–225 lbs.
Height:6'3"
Yes , I recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
FredWYH
London, GB
Rated 5.0 out of 5 stars

Small but sufficient for a fast hike/run commute

1 year ago

I use this for my light daily commute together with the index organiser for a change of clothes as I would cycle or run to my work locations. The straps wraps around the shoulder girdle really well and the chest straps hold them in place. with the bungee-feel of the straps, even if the pack was heavier, you don’t feel much on the shoulders. The back panel can get a bit warm after more than 1 hour of high output activity, but allows quick moisture wicking compared to other run commute packs. The strap compartment can be versatile to not just fit bottles, but was my quick phone pouch for navigation, and trail gels and rations.

Yes , I recommend this product
Originally posted on arcteryx.com
SquamishMeg
Squamish
Rated 5.0 out of 5 stars

Light, durable, and functional

8 months ago

I bought this pack for day hikes, alpine scrambles and longer multi pitch routes, and it has exceeded my expectations. My favourite features are the integrated (stretchy) chest pockets on the shoulder straps (great for phone, radio or snacks) and the double chest/sternum straps that keep the pack from shifting while climbing or scrambling. The side pockets on the pack are actually deep enough to be useful for a waterbottle, or poles or other items. This pack fabric barely absorbs water, and has been surprisingly durable despite its light weight. I also really love how breathable the back panel design is. I love this pack!

Yes , I recommend this product
Originally posted on arcteryx.com
Mike
Rated 5.0 out of 5 stars

Great adventure day pack

1 year ago

All round awesome day adventure pack! Love the size, how it hugs the body, and great/easy to access front pockets and compartments. Great running pack/daypack hybrid. Also love it for rock climbing!

Yes , I recommend this product
Originally posted on arcteryx.com
Leothe3rd
Rated 2.0 out of 5 stars

Nice pack with a flaw - no hydration bladder leash

1 year ago

Bought this pack but returned it. Comfy and lightweight. Good for less than 12 mile hikes with one issue - there isn’t a retaining clip for the hydration bladder. So the bladder will slouch when placed inside and being drained. A simple Velcro loop could have been attached to the interior area near the back of the pack. A miss in the design. Maybe it will be fixed in a revision if this pack. The front shoulder pouches are fantastic - store 700ml flasks, snacks, phone, lip balm. Love this design touch as its very useful. Pack fits nicely on a larger athletic framed male.

Originally posted on arcteryx.com
Response from arcteryx.com
Arc'teryx Guest Services
1 year ago

Hi there, thank you for taking the time to provide your review. Providing feedback like yours assists us in fine-tuning our designs to align more precisely with our customers' evolving preferences for future seasons. Rest assured, we'll convey this valuable input to our design team.

Claudia
Squamish, BC
Rated 5.0 out of 5 stars

Best for day speedy day hikes/ scrambles

7 months ago

If I know I’m going after a straightforward hike/ summit/ scramble objective (no glacier traverse) and I know I’ll have water sources along the way, this is the pack I reach the most. It’s super light. The vest fits incredibly comfortably. The position of the two front water bottles makes it possible to sip from them without taking them out. And the compartment of the bag is spacious while being relatively water resistant. Because this pack is so super light, I’ll even pack it in my heavy overnighter bag when I know we’ll be leaving all our overnight gear behind for us to push up to a summit. I currently have no cons for this pack. It’s perfect for my needs. Highly recommend having this pack as part of your go to kit for day hikes and easy scramble objectives.

Yes , I recommend this product
Originally posted on arcteryx.com
BenjiB
UK
Rated 4.0 out of 5 stars

First Look Review

1 year ago

No current reviews on the new Aerios 18 so I thought I’d share my first observations after picking up this pack today. I’ve not used it outdoors yet so please only take this as some initial observations which might help people before they buy. Firstly, fabric. Hadron on the front and a lower denier on the top and sides. I didn’t think I would like this as I’d prefer hadron all over but in reality it seems fine, it will be interesting to see how wear affects the lower denier fabric over time but generally speaking it looks robust enough. Zippers are all fine and feel fairly similar to the previous generation pack. The storage pocket on the front is fine, and is very similar to the previous model. The shock chord on the front of the pack is routed into this pocket which keeps chord ends neat and tucked away. You can probably fit a lightweight jacket in this pocket, I use mine for a small first aid kit and survival bag with plenty of room to spare. They’ve made some changes to the main compartment. You now have a larger inner zipped pocket at the top, probably large enough for some smaller mobile phones; I normally store a compass, small GPS, head torch and some batteries in this pocket, it’s great, well positioned and very useful. This pocket is secured with Velcro and if you peel it open you can access the foam back panel and straps for the harness…but more on this feature later on. For all of you hydration bladder lovers they have included a lightweight mesh compartment to store one and you can route your hose through the top ports near the shoulder straps. I’m sure many people will find this a useful addition. Moving to the outer rear of the pack it looks like the back panel is made from the same material as the previous generation; time will tell if some users find this too harsh on their garments as I saw a few reviews saying it damaged their clothes. If I have both my Aerios 15 and new 18 next to each other they look and feel identical but I personally never had any issues with jacket/top damage from the pack. Notably, the back panel has a much sturdier insert with what feels like metal reinforcement strips, this feels like a huge improvement to the previous generation and the back panel in general feels more structurally stable, hopefully no snapped plastic parts this time round! The biggest and most obvious change is with the harness system. I found the previous generation to have an extremely comfortable and useful shoulder straps. This time round they have two large pockets which fit 500ml running style bottles easily. There are two zipped pockets which easily fit mobile phones, snacks, gels etc. They’ve moved the zips for these pockets to the inside edge which is a massive improvement. They’ve also changed the sternum straps from stretchy chord to a more static string, feels similar to what they have on the Norvan hydration packs. I think this is fine but it will be interesting to see if this puts extra strain on the fasteners over time. What I can say is they seem to hold their position better than the previous generation which tended to loosen up as you moved. The biggest change over all is the shoulder straps. The previous generation were normal style straps sewn into the back panel. The new Aerios 18 has moveable and adjustable straps. You open the pack, access the rear panel through the velcro port and can physically change the length of your shoulder straps using velcro; I’d say there is about 6 inches of adjustment. You then use the ‘load lifter’ straps on the harness to secure in place. If I’m being honest, I prefer the simplicity of the older model, while it’s quite nice to be able to position the harness where you want it, it does seem a bit much. I’m sure shorter or very tall users will appreciate this, but for the vast majority of users might find this is just added weight and complexity (as well as more that can go wrong). Plus the sleek shoulder straps now have an adjustment buckle plus a long length of webbing material. I also think the shoulder straps aren’t as wide at the top as the previous generation so I’m not sure they are as comfortable - don’t get me wrong this is still a very comfortable pack. Finally, I bought mine in black. It looks absolutely awesome! I’ll report back once I’ve had some use in the outdoors and can really review what it’s like from a usability perspective.

Originally posted on arcteryx.com
pamjpryor
NewHampshire
Rated 5.0 out of 5 stars

Great pack

1 year ago

Purchased this last month, and to all the people, who can not seem to find the hydration ports, they are inside, on top, under the zip pocket! There is velcro holding the zip pocket down, lift it up! There you go! Great pack!

Age:45–54
Weight:More than 400 lbs.
Yes , I recommend this product

Overall Fit Rating

Runs SmallRuns Large

Ease of Use

Difficult to useVery easy to use
Helpful?
Livv
Phoenix
Rated 3.0 out of 5 stars

Inaccurate product description

1 year ago

Very disappointed when I unboxed this to find there is not hydration bladder clip like on previous aerios packs. There is a bladder pocket and holes where the straps connect for a pass through but no way to keep it from sagging in your pack despite what the description says. Debating if I'll sew my own in or return. This is an expensive product to make such mistakes. Also not a huge fan of the bungee cord chest straps, personally I would prefer something flat and a buckle closure.

No, I do not recommend this product
Originally posted on arcteryx.com
Nick
NJ
Rated 5.0 out of 5 stars

Feels like it's built into my body!

8 months ago

This bag went well beyond my expectations. At only 18L, I thought I would struggle to fit what I needed for a day on the trails. I took it to it's limits while photographing fly fishing in Yellowstone. It was a full day out, deep into the wilderness. I was able to comfortably carry my camera + 3 lenses, extra clothes, microfiber towel, 4 16oz beers, bear spray, and 2L of water. The pack stayed feeling light and was shaped well around the body. Awesome!

Originally posted on arcteryx.com
1 - 10 of 20 Reviews

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