We've designed this pack for big adventures so you can go long in terms of storage, comfort, and functionality. The Adventure Pack 12L features a zipper secured top closure for easy access and a compression system which stabilizes by compressing the pack vertically and horizontally. 

Front: The chest pockets fit plus sized phones and 600ml soft flasks. The two small pockets in front of the flask pockets are for gels/trash/etc and the two shoulder pockets are for your phone, chapstick, and nutrition. Purchase flask here: Soft Flask The elastic chest harness works wonderfully for ladies and just as well for guys. Sizing is versatile from very petite up to about a 52" chest.

Right side: Has a 9" long zippered opening for access to maps, jackets, headlamps. The pocket reaches across the pack which creates an interior baffle as well as a large pocket. 

Left Side: Features a large pocket which holds most any water bottle or flask, and the 1" bar tacked nylon on the back works great for holding trekking poles with our optional Trekking Pole upgrade. You can buy it here if you don't at the time of purchase.  Otherwise select the one with trekking pole hardware. Note: The pack does not come with Trekking Poles and they are only shown for illustration purposes.

Bottom: Features a 20mm attachment system for sleeping pads and additional gear. 

Interior: The interior has 3 compartments. 1st is the bladder pocket which holds a 2L bladder (included) but can hold a 3L also. 2nd is the main cargo for bulky gear, and the third is for light jackets. 

Weight without bladder: 18oz / Dimensions: 10.5" wide x 15.5" tall. / Cargo: 12L, 723 cu. / Bladder included: 2L with lockout and quick disconnect. Made in: Vietnam / Sport focus: Trail and ultrarunning, Fastpacking, Adventure Racing, Hiking, Mountain Biking. Note: The Adventure Pack 12L does not come with soft flasks. We do sell them on our site if you'd like to add them. Extra bladders here. Note: it comes with the 2L, but a 1L or 3L will fit in it too.  

average rating 4.9 out of 5
Based on 50 reviews
  • 5 Stars
    47 Reviews
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100% of reviewers would recommend this product to a friend
Times Used
Rated 3 out of 5
Quality
Rated 5 out of 5
Function
Rated 4 out of 5
Customer photos and videos
50 Reviews
Reviewed by Joe M., from United States
Verified Buyer
I recommend this product
Product Standouts
  • High Quality
  • Easy to Wash
  • No Bounce
  • Very Comfortable
  • No Chaffing
I use it for
  • Road Running
  • Trail Running
Rated 5 out of 5
Review posted

Fantastic Option for wider shoulders and torsos

I fancy myself a runner and have had several running vests for various activities. All of them have come up short because I'm built like a battle gnome with wide shoulders, a 42+ inch chest and long torso. The Adventure pack is a fantastic solution as it is highly adjustable for anyone. For the future, my only recommendation is to find a hydrophobic elastic band to replace the webbing on the sides. MMI textiles may have some good options.

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Rated 3 out of 5
Quality
Rated 5 out of 5
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Rated 5 out of 5
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Reviewed by Alex T., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • Very Comfortable
  • Easy Access
I use it for
  • Trail Running
  • Ultrarunning
Rated 5 out of 5
Review posted

New favorite pack

Got this pack for some of my longer trail adventures a couple of months ago. I absolutely love it! Great quality I expect from OM, has the same smaller footprint as the endurance pack (my previous favorite), but has more room -and lots of pockets!-for essentials. I got the optional trekking pole hardware. It is quite possibly the perfect pack!

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Rated 4 out of 5
Quality
Rated 5 out of 5
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Rated 5 out of 5
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Reviewed by Peter C., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • No Bounce
  • Easy Access
I use it for
  • Trail Running
  • Ultrarunning
Rated 5 out of 5
Review posted

Perfect for 40 mile Unsupported Run

When I was looking for a running pack which I could use for a 40 mile unsupported FTK attempt, this pack was perfect for what I was looking for. It had enough room to carry what I needed, and felt comfortable to wear with the pack sitting up more on the shoulders, and not causing extra weight on the lower back. The verdict after my run was that this pack was just what I was looking for, and worked like a charm.

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Rated 2 out of 5
Quality
Rated 5 out of 5
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Rated 5 out of 5
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Reviewed by Paul U., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • No Bounce
  • No Chaffing
I use it for
  • Trail Running
  • Ultrarunning
  • Mountain Biking
Rated 5 out of 5
Review posted

All the Features You Want & Need

A great ultra pack with all the little things done right. Pockets just where I like them with easy closures. Totally adjustable for a very comfy fit. I already owned a smaller size and when I realized I needed something a little bigger for lengthier runs I didn't hesitate to get another Orange Mud pack.

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Rated 5 out of 5
Quality
Rated 5 out of 5
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Rated 5 out of 5
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Reviewed by Todd P., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • Very Comfortable
  • No Bounce
  • No Chaffing
I use it for
  • Trail Running
Rated 5 out of 5
Review posted

Super Pack for hike/trail running

Got this pack for my longer hike/run journeys. It was everything I'd hoped for with extra room for clothing, nutrition, and accessories. Pack is form fitting so even when you have some added weight, the distribution can be adjusted, and the straps flex with it, and expand/contract with breathing. Not constrictive. Pack stays put while in motion. The only thing I'd change is the chest straps and how they do not lock in place when cinched up. They loosen up over time and have to readjust frequently when in running mode.

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Times Used
Rated 3 out of 5
Quality
Rated 5 out of 5
Function
Rated 4 out of 5
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