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Mystery Ranch
Urban Assault 18L Backpack

4.791666666666667 out of 5 stars
24 Reviews
Current price: $103.16 Original price: $128.95
20% off


Size Chart


Why We Like The Urban Assault 18L Backpack

The Mystery Ranch Urban Assault 18L Backpack holds everything we need for our daily commutes without excess bulk or space. A laptop sleeve hugs your computer closely to the back panel for carry comfort and protection, while internal zippered pockets keep your smaller items like your keys and phone easy to access. The main compartment with all your bigger items is also easy to get into thanks to Mystery Ranch's classic 3-ZIP design that allows you to zip and unzip the pack when you're in a hurry.


  • Smaller commuter pack to take your necessities wherever you need
  • Durable Cordura construction resists damage and abrasion
  • 18L easily accommodates your daily essentials in a compact pack
  • Internal HDPE frame sheet gives rigidity and support for comfort
  • Laptop sleeve protects your 15in laptop during your commute
  • Internal zippered pockets help keep smaller items organized
  • 3-ZIP design allows rapid, easy access to the main compartment
  • Item #MYT0033
500D Cordura nylon
18L (1098cu in)
Shoulder Straps
padded, adjustable
top, front
[internal] 1 lid, 1 zippered accessory, 1 laptop sleeve
Laptop Sleeve
accommodates up to 15in laptop
19 x 9 x 12.5in
Claimed Weight
1lb 12.8oz
casual, travel
Manufacturer Warranty

Overall Rating

5 based on 24 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 3 reviews
5 Stars - 20 reviews

What do you think about this product?


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5 out of 5 stars

June 14, 2023

Excellent pack for walking to work

I'm very happy with this upgrade to my work backpack. I walk to and from work every day (~1.25 miles) and am finding it quite comfortable, even though it doesn't have a waist belt (though I wish it did). It fits a lot more than I expected, and comfortably fits my lunchbox (which itself comfortably fits a full 6 pack - though that's not what I'm having for lunch!) plus a raincoat, spare shoes, a few cans of sparkling water, and a few other things. The y-zip feature is awesome! (I don't think I could fit as much--especially not my lunchbox--without it.) It makes it easy to pack everything carefully, maximize what I can fit in the space, and access things inside without removing it all. I also used it as my carry-on bag recently and found that it fit and carried my laptop very well (which I normally leave at work, so it's not in my bag during my normal commute), and fit under the seat in front of me perfectly. It made it so easy to get out just what I wanted (e.g., my over ear headphones or my book) without having to spill all over my seat neighbor or the floor of the plane, even for someone who overpacks for flights (I like to have options for activities!). The two internal pockets are nice for storing small things like headphones or keys, and the brain is very roomy and easily stores things you want to access more often. I also really like the pink color. I waffled for a bit about whether I wanted a pink backpack (too girly?) and ended up picking it to maximize my visibility while I'm walking, and have ended up loving it! And the zippers are VERY high quality, and seem to be fully waterproof. I just wish it had a dedicated water bottle/coffee thermos sleeve, inside or outside. I've already had one incident where my coffee thermos spilled because the o-ring had shifted and I wasn't careful about keeping it upright.


Originally reviewed on

5 out of 5 stars

April 26, 2023

Exactly the EDC Pack I was looking for!

This is my second Mystery Ranch pack, I love it! I needed a backpack for an everyday carry/gym bag/carry-on/day trips etc. and I decided on the Urban Assault 18. I'm really glad I did, I think it's the perfect size and the interior pockets make it super convenient to organize. The top pocket has a small clip that you can hook keys to. I love that it is water resistant. However, since the zipper is water resistant too it makes it a little difficult to open and close, but I think that is just because it's new! My other pack was the same way and it loosened up after some use. One thing I do find a little odd is that the velcro strap on the inside of the pack to keep the laptop pouch closed also looks like it could be used for a water bladder, but there isn't a slot for the water bladder hose to come out of? Most of the time I wouldn't need to use a water bladder with this pack, so it's definitely not a deal breaker, but thought it was worth mentioning!


Originally reviewed on

5 out of 5 stars

March 3, 2023

UA18 & UA21

I have a black one of each - the 18L is my EDC for summer and the 21L for winter. I carry a puffy and a hard shell in my winter kit, all else being equal. After having carried packs for a living as an active duty light infantryman & guide, these are the packs I use and these are the packs I recommend…every time, all the time.

Ninja Squirrel

Originally reviewed on

5 out of 5 stars

February 17, 2023

Great summit/climbing pack

Even though it’s not designed for it I bought this bag for climbing. I cut the camel back pocket out and removed the rigid frame sheet(left the foam pad). Got the bag down to 22oz. Similar sized, ultralight climbing bags are only half a pound-ish lighter. That makes the ME pretty light considering how durable it is. It’s also much more comfortable than similar sized climbing bags. I fit a full trad rack, harness, shoes, chalk bag, puffy, shell, Nalgene, first aid kit and snacks in it with careful packing. You can easily attach an ice axe or crampons with a little webbing. I like the Vice color because it’s very visible in the alpine.


Originally reviewed on

5 out of 5 stars

October 29, 2022

Perfect EDC

Great EDC bag. Perfect size with just the right amount of pockets in the right places. It’s so good my wife stole it from me.


Originally reviewed on

3 out of 5 stars

October 16, 2022

beautiful but lower zip gets stuck

i bought this thinking its strong and sexy little bp and it is but it does have a water bottle even inside and the lower zip gets stuck where the other two zips stitched so u have to pull it hard


Originally reviewed on

5 out of 5 stars

July 26, 2022

Excellent for women's bag

Got this for my wife for our upcoming trips abroad. We just got back from the Caribbean and had a few overnight layovers. I instinctively always pack additional clothes and overnights in my carry on (mystery ranch 2 day assault pack) and also threw some of her stuff in as well. When we got hit with an overnight delay she instantly loved the idea of the travel carry on bag and wanted the same thing but "her size". The urban assault 18 fits the bill. Just as rugged and comfortable as my 2 day assault pack but without the bells and whistles and MOLLE. Enough for her to pack everything she needs for comfort and a 'sudden' overnight. My wife is 5' even and it's just about the perfect size where it's not too bulky. This bag would make an excellent commuter bag, beach bag, or 'bare bones' go bag of your an overseas worker. If you would like to have more gear and a good change of clothes and some comforts, go for the 2 day assault bag.


Originally reviewed on

5 out of 5 stars

December 23, 2021


Great pack enjoy it. Put my wrist straps in the side but could aways put my hfb or the Glock. Shout out Andy arribito


Originally reviewed on

5 out of 5 stars

November 23, 2021

Perfect for Hybrid Imperfection….

I needed a better mousetrap to commute on foot back and forth a few times a week from the UWS to Midtown Manhattan and back. Urban Assault, indeed. This is the perfect pack to mule the minimal patrol items to what is now at best a FOB - what was before Central Command. Thanks MR, I have very fond memories of what I accomplished with my Dana Design expedition pack. This rig will serve me just as well, for a very different mission.


Originally reviewed on

5 out of 5 stars

October 30, 2021

Great quality

I just got back from my cruise where I use is bag for my trip and excursions and it worked perfectly. I got the smaller one and I’m glad I did . Wasn’t bulky yet I could carry all my fun gear and stuff.


Originally reviewed on