How to Choose Daypacks
Bend, Oregon
Arc'teryx Aerios 18 Pack
$180.00
Made with an ultralight, ultrastrong fabric, this Arc'teryx 18-liter pack stands up to drops, drags and snags on the trail. The fabric sheds light rain, and the harness system can be customized.
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- Lightweight, durable and water-repellent
- Proprietary Hadron® LCP (Liquid Crystal Polymer) grid face fabric is incredibly light and exceptionally durable with abrasion resistance rivaling fabrics twice its weight
- Updated with a FC0 durable water repellent (DWR) finish for a lower footprint; FC0 DWR finish repels moisture and is PFAS-free
- Highly breathable AeroForm back panel and anti-barreling framesheet enhance carrying comfort
- Highly breathable shoulder harness with 2 zippered pockets that accommodate 500 ml soft flasks or devices (flasks not included)
- Patent-pending 2-point harness adjustment system works at top and bottom for optimal pocket positioning and fit
- Adjustable sternum strap and removable waistbelt
- Reservoir clip inside of main compartment (reservoir not included)
- Hydration port allows for ease of tube passage outside of main compartment
- Top pocket; 2 side pockets; internal security pocket with key clip
- Front bungee compression system and webbing daisy chain provide external carry options
- 2 trekking pole attachment points
- Patent-pending interchangeable harness system for a precise fit across a wide range of body types
- PFAS (per- and polyfluoroalkyl substances) compliant
Imported.
View the Arc'teryx Aerios Product LineView all Arc'teryx Daypacks| 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.) | Regular: 18.25-20.25 inches |
| Material(s) | 210D CORDURA nylon 6,6 with 6.5 twisted 200D Vectran grid, 165 g/m2 with durable water repellent (DWR); Powernet 240 g, 200 g/m2; lining: 200D polyester, back: 20 g PU coated with FC0 DWR, 108 g/m2 |
| Number of Stays | 1 |
| Pack Access | Top |
| Number of Exterior Pockets | 5 + main compartment |
| Hipbelt | Yes |
| Reservoir Compatible | Yes |
| Dimensions | 19.3 x 9.4 x 7.5 inches |
| Gender | Unisex |
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Skaugs
Get this Backpack!!!!
2 weeks ago
Love this backpack!! I brought it with me on a 4 month trip in Asia, and it was the perfect smaller backpack to have. I brought it on shorter 3-4 day excursions leaving my main pack behind, and it was the perfect size to fit clothes, toiletries, a small towel, everything you need. I love the front pockets along the straps as well, It's a perfect spot for your phone for easy storage and grabbing. It also fits very comfortably on the body, and lastly I got major use from the straps on the back of the pack, I would stuff my jacket or shoes in there which made packing all of my stuff a lot easier.
Originally posted on arcteryx.com
Ellen
San Jose, CA
Awesome school backpack!
5 months ago
LOVE using for school! I use the Aerios 18 for my school backpack. It perfectly fits my computer (macbook air 13) , ipad air, notebook, a book, my 18oz hydroflask, and keys. I like the strap mesh pockets, perfect for straggler hairties, keys, or chapstick. One small thing, if the pack gets too bottom heavy (ipad, heavy calculator), the frame of the back will curve a bit. I usually have no problem because I have my laptop to even out the weight but on those days I don't it looks a bit wonky!
Originally posted on arcteryx.com
Lena56
Stockholm Sweden
Great features
1 week ago
Very, very good for everything. Comfortable to carry, not too warm because of the design. It takes rain trousers, rain jacket and a warmer long sleeve pullover at the same time, so good capacity.
Yes , I recommend this product
Originally posted on arcteryx.com
lkimn07
2 weeks ago
mlsa
Vancouver, Canada
Lightweight and durable, but major design flaws
1 month ago
I purchased the Arc'teryx Aerios 18 as a lightweight alternative for hiking and occasional trail runs where a hydration vest lacks the required capacity. While the pack delivers impressively on weight and material robustness, the overall execution suffers from several serious usability shortcomings. Foremost among these is the much-advertised "patent-pending interchangeable harness system." In practice, the chest strap mechanism fails to maintain tension. No matter how it's adjusted, it loosens within minutes. Compared to systems from Osprey, Salomon, Camelbak, and Patagonia, this is among the worst I've encountered. The inability for the straps to keep tension is a nuisance during hiking but makes the bag entirely unfit for dynamic movement like running or scrambling. The section design issue is the bag detailing. The pack is cluttered with cords and toggles—on zippers, straps, and anchor points—that detach with minimal force. In just a few months of use, I’ve lost three. There are some redeeming features. The removable waist strap is superfluous for most uses, but at least it’s fully detachable. Shoulder and back comfort are excellent, but due to the lightweight construction, any unusually shaped objects need to be packed carefully otherwise they'll push through the back pad and cause discomfort. The chest pockets are similar to Salomon’s hydration vests and are genuinely useful for quick-access items. Side pockets are also well-designed, easily fitting a standard Nalgene or collapsed trekking poles. The Aerios 18 is comfortable and lightweight, but exhibits a number of poor design choices, which feels like a departure from Arc'teryx's usually rigorous quality. I'm really not sure why they'd bother patenting the chest system, it's truly awful.
Originally posted on arcteryx.com
Response from arcteryx.com
Arc'teryx Guest Services
3 weeks ago
Hi there. Thanks for your thorough review of the Aerios 18 Backpack. We’re glad to hear the pack’s weight, comfort, and pocket design have served you well, but we’re sorry the harness system and detailing have fallen short of expectations. We’ve shared your detailed feedback with our design team, as insights like yours are important to help us refine future iterations. If you haven’t already, we recommend submitting a Product Service Request Form so our team can look into the strap issue directly: https://arcteryx.com/us/en/help/product-service/service-request