I also have the previously released Aerios 15 and 30, I love both for just about every scenario that requires me to use a backpack. I’ve used both for everything from hiking and camping, to traveling and amusement park duty for my family of five. That’s a pretty broad range of environments and each have different requirements. They’ve both handled well in every circumstance.
The Aerios 18 is extremely comparable to the 15. That said, there are some differences that I enjoy, and some I’m not quite sure of yet.
I like the new overall design. While it’s very very similar to the 15, the overall shape is a bit different. It’s a bit more streamlined overall, it also adds face material in high wear areas that the 15 lacked. Namely, the areas at the bottom of the side mesh pockets now have face material that extends all the way to the main body of the pack. On the 15, the mesh material extended to the bottom of the mesh pocket where it could contact the ground or other rough surfaces. I never had an issue with wear in those areas with the 15, but it’s there on the 18 none-the-less.
I really like the new streamlined look of the front strap pockets. I’ve used those pockets on the 15 a lot (especially in the aforementioned “amusement park” scenario) to hold phones, keys, hotel keys, SD cards, sunglasses, etc. When I got the 15 two years ago, I wasn’t sure if I’d like the extra bulk when cycling the pack on/off, but they’ve been clutch many times and I love them.
That said, the new strap pockets on the 18 are better and worse than the 15. The updated pockets lack the little adjustable internal pocket cord at the inner top of the pockets used to increase or decrease the mouth “aperture” of the mesh stuff pocket behind the zippered section. That was an awesome detail that kept things (like phones) from slipping out of the mesh pockets. The adjustment was just enough to close down the pocket opening so a phone wouldn’t fall out if you found yourself fighting gravity in the wrong direction. It sounds extreme, but I’ve managed to test that design feature, and it works swimmingly. Can’t do it with the 18 though as they’ve removed the internal adjustments. The new overall “slickness” of the strap design does make the pack nicer to don.
I enjoy the new zipper placement (now on the interior of the straps, instead of the outside). Now you can access either pocket, with either hand …or both at the same time. I never used the tiny shock-cord/hook points at the very bottom of the straps on the 15, so it really has no affect on my use since they’ve removed them on the 18. That exclusion adds to the streamlined look and feel of the straps.
The lower section of the straps where the nylon strap attaches to the mesh pocket section of the strap has been updated as well. On the 15, the nylon strap attached directly to the mesh/padded section of the strap. Again, I’ve found no wear issues with the old design, but it’s been changed on the 18 to include face material at that interface. I would expect that update to offer a longer lifespan at that wear point (even if it’s beyond a normal human lifespan anyway LOL).
The strap padding material and face fabric is also different. The 15 has a dense (more rubbery feeling) padding and softer, more supple, face fabric throughout. The 18 has a lighter weight (more foamy feeling) padding material, and a bit rougher (but heavier duty feeling) face material. I’m sure this was updated with minimal durability, but primarily weight savings in mind. The update succeeded in saving weight, but I see no external strap wear on my 15, so the durability upgrade will have to be perceived for now.
Also, the 18 now features the addition of internally adjustable “yoke” strap adjustment and load lifters at the top of the straps. I never wished upon my lucky stars for this addition, but appreciate it none-the-less.
Outside of strap changes, the cordage throughout the 18 is a smaller diameter and has less stretch than the older 15/30. It feels a little more durable and less prone to fraying.
The adjustments for the “daisy chain” cordage on the front of the pack is also in a different location. It still resides inside the side mesh pockets, but now the barrel adjusters are mounted to the inner-top of the pockets instead of at the bottom of the pockets. So, they’re a bit easier to get to.
The second adjustment for the daisy chain cordage is still in the front exterior zippered pocket, but it lacks the barrel adjuster that was present on the 15. Now the cord is just tied in a knot.
Where the front daisy chain cord enters that front pocket is also upgraded (at least I consider it as such). On the 18, the cordage holes are now embroidered with reinforcement around the holes. They just went straight through the face fabric on the 15.
As for the main body of the pack; the shape is somewhat different, although the dimensions are almost exactly the same for width and depth. However, the 18 is about 1” longer than the 15.
Also, the face material for the main body of the pack has changed to two separate pieces of material. The front, back, and bottom are the grid pattern rip-stop, but the entire outer perimeter (where the main pocket zipper travels) is a slightly lighter weight face material. The face material for the main pack on the 15 was the same throughout. I don’t find this to be an upgrade or downgrade, just a change.
The main interior pocket on the 18 has changed a bit. The secondary internal pocket has grown a bit bigger on the 18, and it now has cutouts at the top of the pocket to accommodate plumbing a water bladder. Also, the key hook is on the interior of that secondary pocket now. On the 15, the key hook was outside of the interior pocket and just dangled in the expanse of the main pocket. So, I find that to be an upgrade.
However, the 15 had a key hook …and a water reservoir quick release strap. The 18 does not have a way to suspend a water reservoir. I don’t ussualy use a bladder in the 15 (and probably won’t in the 18), but it was there the couple of times that I did use one. It was useful. All of the upgrades to accommodate a reservoir are kind of pointless without that one little attachment point. It’s an exclusion I’m pretty indifferent about, but seems like a feature that turned into an afterthought.
So, I enjoy it. I picked mine up at REI, so I was able to snag the last 18 in the Chloris/Forage color, that made me happy. It would be 5-stars if it had the elusive reservoir hook.
I would have also picked up the 35, but couldn’t get over the roll-top for my uses. I wish it had been a zipper main opening.
Q: Size Purchased:
A: Regular
Q: Activity
A: Hiking, Traveling, Amusement Parks
Yes, I recommend this product.
Originally posted on Aerios 18 Backpack, 2024
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