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Lightweight, durable, and plenty of room for your hiking gear.

Take the CamelBak Octane 18X Hydration Pack with you when you head into the wilderness for some peace and quiet. Equipped with the three-liter Antidote reservoir with Quick Link System, that is ideal for full day hikes, the Octane 18X gets you to your destination and back again. An expandable cargo space and multiple pockets carry your extra layers, lightweight rain jacket, maps, trekking poles, and energy bars. CamelBak wanted to make sure you’ll be comfortable during your trek, so they gave the Octane a low-profile fit for stability and put Air Channel technology in the back panel that helps keep your back cool and dry.

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CamelBak Octane 18X Hydration Pack - 1281cu in

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Here's what others have to say...

I'm looking for a pack that I can use for...

I'm looking for a pack that I can use for hiking/trail running that I can put my Canon 7D in. Does anyone know if this pack is big enough to hold a DSLR with a small lens?

Responded on

Thanks to the calculating power of the Goog, I was able to determine that the 7D body by itself is around 74 cu. in. , so even with a small lens attached, I would have to bet you would be able to tote around your DSLR in this pack with some room to spare. However, I would use some of that ample room you'll have left to make sure your photographic armamentarium doesn't get busted up if you do decide to run with that stuff in the bag - haha.
Hope this helps.

4 5

Good pack, but thin skin.

  • Gender: Male
  • Familiarity: I've put it through the wringer

For most uses this pack is great. Tons of room, expandable, light, good looking... I've used it for both hiking and biking and found it great for both.
Unfortunately, the light weight aspect of it means that the material is thinner and not necessarily stronger. I did a couple serious day hikes with it and both times came home with new holes. Duck taping the inside seems to help, but I expected it to be tougher.

Great biking pack

Great biking pack

Enough room for tools and snacks with all the water you need. My wife loves it.

Can a laptop fit inside with a full bladder?...

Can a laptop fit inside with a full bladder? I'm aiming to bike my 15 mile commute to school, but need to carry my laptop.

Best Answer Responded on

Hey Nater,

My best guess is going to be no, depending on the size of your laptop. This is only a 20L pack , and when 3 of those liters is a hydration bag, that expands, unless you have a very small computer, it probably won't fit. If you look at the other pictures that people posted, the pack is not much larger than a wide brimmed hat, which makes an excellent reference. Best of luck

4 5

Great day pack

This pack works great as a day pack for hiking and anything else outdoors. While it is not the biggest pack, you can carry a good amount of water and enough gear for a decent day trip.

Unanswered Question

Is there actually a size difference between...

Is there actually a size difference between this model and the newer 18x that says 1098 cu inches or did someone just decide it's not as big as advertised? Trying to figure out if there's really any differences besides color. Thanks!

3 5

Need something a little bigger

If I had filled up the water reservoir there would not have been much room left for much "stuff". I need "stuff" room. Rain jacket, etc.

Responded on

It is not an enormous bag, but as Dean posted below, it is 1281 cu in (21 L)open, and 976 cu in (16 L)closed (compressed). Plenty of room for most 3-season dayhikes.

5 5

Trail running in Guatemala

I took this pack on a week long trail running adventure in Guatemala and LOVED it. It was big enough to take water for almost a whole day every day. I only had to refill on particularly long days when we were out over 8 hours or so. I generally carried an electrolyte bottled drink in the bag to supplement the water.

I was able to carry the full bladder, the extra bottle of electrolyte, food for the day and an extra layer and still didn't have to open the expandable compartment (my extra layer was VERY thin though).

When the bladder is completely full, you will find that it moves around a bit while you run. But, I was still able to run with it.

I read a review that said the straps would slip. Even with it fully loaded, that did no happen to me.

The pack is very comfortable. It did not rub me weird in any places.

Love this pack. Recommend highly.

I was on this adventure if you want more details:

Trail running in Guatemala

Can anyone confirm that the straps stay...

Can anyone confirm that the straps stay put? I have read in reviews that you will have to tighten them every 10 minutes or so if you are running with it. This problem is the only thing holding me back. Appreciate your thoughts.

Best Answer Responded on

I don't run with mine, but I hike at a high-output pace, and I have never had to tighten the straps, other than sometimes intentionally as the load lightens just to snug it up.

Is this really 1281 cu in? That seems very...

Is this really 1281 cu in? That seems very large.

Best Answer Responded on

Hey Dustin, the pictures are deceiving, but technically:

Total Capacity:
Open: 1281 cu in (21 L)
Closed: 976 cu in (16 L)

There's a zipper on the front that expands the internal space to the OPEN size...the pictures here show it zipped closed...

5 5

Camelbak is a good value, since you get a brand new reservoir each time you buy a pack

I have been using one of these for my local dayhikes and chose it for my recent Grand Canyon Rim-to-River dayhike, which was 17 miles and ~111 degrees. I have no complaints about the bag whatsoever. Roomy, but not too big (and I especially like the zip-up compression feature), lightweight, amd comfortable. The trekking pole cords are nice as well. I always feel like Camelbak is a good value, since you get a brand new reservoir each time you buy a pack, and in this case it's the new Antidote model in the three-liter size.

5 5

50 Mile Race.

I just completed my first 50 mile ultra and this was a great camelbak for all of my gear and food. Loved it!

4 5

Nice lightweight camelba

perfect for trail running competitions or long hikes. I can fit lots of stuff in it. The side pockets are great if you don't want to waste time taking out supplies. Fits good to my back and the design looks great.

Nice lightweight camelba