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Mystery Ranch
Coulee 40L Backpack - Women's

5 out of 5 stars
12 Reviews


Size Chart


Why We Like The MYSTERY RANCH Coulee 40L Backpack

The MYSTERY RANCH Coulee 40L Backpack is sized to carry everything needed for our day hikes across grueling terrain and minimalist overnights. It's designed with an ingenious 3-zip opening for speedy access to all our essentials and features an adjustable yoke for a truly customized, back-cradling fit. Numerous pockets throughout the lid, sides, front, and hip belt organize all our gear and larger items. Plus, with tool attachment points and a hydration-compatible design, this pack is as about as versatile as they come.


  • Serious pack for epic day hikes and minimalist overnights
  • Recycled nylon fabric withstands rigorous abuse outdoors
  • 3-zip opening for quickly accessing and storing your gear
  • Mesh padded shoulder straps and load-stabilizing hip belt
  • Plenty of pockets help you organize smaller pieces of gear
  • Fully padded back panel and carry straps assure comfortable carry
  • Adjustable yoke provides you with a truly customized fit
  • Item #MYTD03T
Responsible Collection
210D 100% recycled Robic nylon, DWR treatment
40L (2320cu in)
Lightweight Trail yoke, cushioned lumbar
Shoulder Straps
framed harness
Waist Belt
Hydration Compatible
internal sleeve
Reservoir Included
not included
zippered top
2 drop-in front, 2 stretch side, 1 lid, 2 zippered hip belt
Gear Loops
adjustable tool loops
Trekking Pole Carry
Sleeping Bag Compartment
side straps, bottom straps
26 x 11.25 x 9.5in
Claimed Weight
3lb 12.8oz
Manufacturer Warranty

Overall Rating

5 based on 12 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 12 reviews

What do you think about this product?


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5 out of 5 stars

December 25, 2023

Style, female fit, & functional

Wow not only is this pack beautiful, but it was a gift and I was worried about size and using it as a multi-day pack…this pack carriers weight so well and has so many functional areas and storage pockets- can be a overnight bag, weekend warrior or backwoods 3-5 day camping pack! Big fan!


Originally reviewed on

5 out of 5 stars

October 25, 2023

Simplicity done well!

I bought this pack for my first backcountry hike, I’m typically a day hiker. It definitely is a minimalist pack and there were moments I didn’t think I’d have enough room but I did! This pack fits well and is light. 18 miles this weekend in the Great Smokey Mountains and I couldn’t be more pleased!

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Originally reviewed on

5 out of 5 stars

April 22, 2023

Great bag but too big

Loved the color and the style--the yoke and three zipper design. Everything I wanted. Ultimately decided to return because it was too much bag. Then tried 20--too small, and landed on the 30--perfect size. Loved the arctic blue but had to trade for the paprika orange, which is like Texas Longhorn orange, not the bright orange on the website. Think this will be perfect.

Sunflower Sue

Originally reviewed on

5 out of 5 stars

April 15, 2023

Camino pack

Love my new pack!! Bought it for our Camino trip and super excited about using it. Beautiful blue and love all pockets. Sleeping bag pouch is sweet and zipper in front of bag will help me stay organized and see everything in my pack without emptying it.


Originally reviewed on

5 out of 5 stars

March 21, 2023

Truly the only pack that will fit me.

Goodness, as an extremely short woman with a 14" torso, I could not find any pack that would fit me. I tried on so many, including Ospreys, Gregory, Deuters, etc. in many different models and most of them only go down to 15" torsos and would noticeably ride far too high or feel top heavy even with load adjusters. I resigned myself to looking for kid sized packs until I found that Mystery Ranch made the coulee in Women's sizes with FAR more adjustment capabilities. This one can adjust all the way down to a 13" torso for the XS or S size! I generally don't buy backpacks without trying them on first, but this backpack was a unicorn and the specs seemingly fit all my needs, so I ordered it. I have taken it on one backpacking trip so far and it's wonderful. It fits me exactly and is sooo comfortable. Do I wish it had a bit more back ventilation? Sure, but the fit and comfort are way more important and nothing else I tried came close. I also love the updated features on the new Coulee, namely, the lash straps at the bottom, the extra bottom access zipper, and the daisy chains. I also love the removable hip belt, which easily converts this into a day pack for my husband or makes it easier to stow for travel. I wish they kept the waterproof zipper, although the updated version does have a DWR coating. I also somewhat dislike how the side compression straps connect to the front pockets although I can see why they did that for added security. I believe previous versions of the Coulee also came with two more internal pockets for a bit more organization, which would have been nice. However, these are very minor gripes. No pack is perfect but this one very nearly IS perfect for me. As for the 40L, it works for me! My husband is the pack mule so on backpacking trips I end up only bringing my half of the sleep system, my clothes, and a few ditty bags of small things while my husband carries the big ticket items. 40L is pretty large for a day pack, but on the small end for a backpacking trip, so just make sure it works for your use case.


Originally reviewed on

5 out of 5 stars

December 23, 2022

The perfect fit pack

I have over 10 packs and not one fits like this one!!! The only thing that I miss on this pack: no daisy chain and no clip fit my keys.

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Dirty hippie

Originally reviewed on

5 out of 5 stars

October 6, 2022

Great pack

I have tried so many different backpacks for my climbing gear and this one fits the bill! It has so many storage compartments, Fits my harness and gear,and is super accessible. I hightly recommend!


Originally reviewed on

5 out of 5 stars

September 14, 2022

Perfect pack!

I wanted a pack for a combination of carry on, hiking pack, and even a short 2 day backpack/fishing pack. I have used it several times already, and it is super comfortable while holding just the right amount of gear. I really love the front and side pockets and the top load is made even better with the option to unzip down the entire front to make finding items and loading easier. The colors are really great too!


Originally reviewed on

5 out of 5 stars

July 24, 2022

Well-rounded backpack

I have used multiple backpacks, and I find that this one balances what I want from a backpack more than any other pack I’ve tried. It’s comfortable even when full, and it’s sturdy. It also makes organization really easy through the combination of multiple large, stretchy external pockets and the excellent zipper system (I love how it opens all the way and in multiple directions/dimensions). This system is so much easier to organize than a backpack with one deep main pocket that can only be accessed from the top. It’s also tailored for women, which makes a huge difference in comfort and fit. Most bags don’t fit my small frame very well. Plus it’s so sharp-looking! The combination of black, gray, and a splash of blue make this bag really attractive. I have gotten several comments on it in the short time I’ve been using it. I really love this backpack!


Originally reviewed on

5 out of 5 stars

June 30, 2021

Nailed it again

This is the third Mystery ranch pack my family owns. I purchased this for my wife. My oldest daughter has a scree 32 and I have a pop up 28. The quality remains excellent and my wife was very happy with the fit. The three zip design makes packing and finding items very easy. The large exterior pockets are prefect for trekking poles. I like it so much I am going to buy one for myself and save the pop up just for hunting trips!


Originally reviewed on