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Mystery Ranch
In & Out 19L Backpack

4.509433962264151 out of 5 stars
53 Reviews
Current price: $66.71 Original price: $89.00
25% off


Size Chart


Why We Like The Mystery Ranch In & Out 19L Backpack

We don't want to lug our huge backpacking pack up the summit, but we sure as heck don't want to be without water, snacks, and added layers when we're up there. If you're looking to bring some added storage along on your next extended trek then reach for the tough yet packable Mystery Ranch In & Out 19L Backpack. This technical daypack has the storage you need for shorter missions and day hikes, with the packability to stow itself in a larger pack, ensuring that you're always ready for any adventure.


  • Set out on summit pushes and day hikes with this compressible pack
  • Stuffs into front pocket to fit in a larger pack on extended treks
  • Cordura mini ripstop is lightweight yet highly durable
  • Ergonomic shoulder straps provide breathable comfort on the trail
  • Compression straps keep mid and outer layers close by
  • Trekking pole carry allows you to take on technical terrain
  • Hydration-compatibility ensures that water is always at hand
  • Item #MYTD01G
100D Cordura
19L (1145cu in)
adjustable sternum strap
Shoulder Straps
aerospace mesh
Hydration Compatible
2 zippered stash, 1 water-bottle
Ice Axe Carry
Trekking Pole Carry
side straps
16.25 x 9.5 x 8.25in
Claimed Weight
Manufacturer Warranty

Overall Rating

4.5 based on 53 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 2 reviews
3 Stars - 1 reviews
4 Stars - 14 reviews
5 Stars - 35 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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2 out of 5 stars

April 5, 2024

Nothing like the photos

The color is so different than the lilac it was supposed to be on the photos that I am disappointed. It is rather grey than lilac. If I would have known, I would have picked a different color. :-(


Originally reviewed on

1 out of 5 stars

February 1, 2024

Does everything a jansport does, but worse.

I've been using this daily for 3 years and here are my takeaways. - The straps have a suggestion of padding but it doesn't do anything. They're not at all rigid and frequently get twisted up. - The top pocket is just big enough for a protein bar and keys, not much more. - Too small for most things, but also too big for use in the city (you might as well get a fanny pack or a bigger backpack). - the mesh rips easily. - the elastic on top of the water bottle pocket is too strong and thick, it makes it so you can't easily get a water bottle in/out of there. Also too small for a nalgene. - the mesh pocket on the front fits a nalgene, but then you lose use of that pocket. - the novelty of having a stowable backpack fades as soon as you realize that the chances of you using the backpack for that purpose are next to zero, unless you're specifically looking for a backpack with these features. - the synch straps are awkwardly placed and hard to tighten/loosen. - there's plenty of places to put stuff on the outside of the backpack, but when it comes to actually putting anything there it just doesn't work really well. This backpack is pretty much built to not be used, or to make it look like you go outside when you really don't.

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Originally reviewed on

5 out of 5 stars

September 22, 2023

Best Small Pack!

This is definitely the best 19 liter pack there is! I bought this for day-hikes, and it is well worth the price. If you are looking for a small pack, I would definitely tell you to buy this one!


Originally reviewed on

2 out of 5 stars

September 7, 2023

Nice bag but color way off

Bought this from their website as "grey". This bag is for you if you really like green instead. Maybe they should photoshop a little less on the images on their website.


Originally reviewed on

4 out of 5 stars

August 11, 2023

Versatile, Packable and Comfortable

I own four or five day packs, each of which has a specific mission. I typically travel with one or another as a carry-on with my laptop, book and small electronics. Keeping my aging back happy transiting airports and at my destination always presents challenges. Carrying business stuff—better still, recreational gear—is a complicated metric that involves the weight of the gear, the weight of the pack itself and the quality of the suspension. No matter what I actually carry on or check, I've taken to stuffing the In and Out 19 in my luggage for use at my destinations when light is important. It's a breath of air when I don't need to haul too much around. My only issue with it—and with many day packs—is the absence of a hip strap or belt. With a troublesome back, it's always great to be able to get some weight off my shoulders and onto my hips. Otherwise, it's an excellent choice for a featherweight pack-along bag. The shoulder straps are comfortable and it's great to not have to consider the weight of the bag.


Originally reviewed on

4 out of 5 stars

July 17, 2023

Quality, lightweight day pack

Great pack for day long adventures. My only wish is that it had two water bottle sleeves. one on each side. Love how light it is without sacrificing the typical Mystery Ranch quality


Originally reviewed on

5 out of 5 stars

April 29, 2023

My Favorite Backpack

I have had my pack for nearly five years and use it multiple times a week as a purse, carry on, and carry-all for adventures like day hikes, themes park days, multi-mile dog beach treks, and more. It has been to multiple countries and climates, and is comfortable even when stuffed to the gills and heavy. I keep it packed with warming layers, hat, shemagh/shawl, sunglasses, knitting project, water, sunscreen, sometimes dog essentials like water and the bubbles wand, wipes, snacks, and whatever else I think I may need for the adventure. The outside water pouch is large enough for my Nalgene but I normally keep the items like sunscreen, bug lotion, and hand sanitizer in that pouch and keep my water bottle inside the pack. I am so happy with the quality and the way the pack has stood up to my not-so-gentle care! I recently ordered my second 19L and a second 22L . I love that this tiny little pile of fabric that fits in your hand turns into such a wonderful day pack.

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Originally reviewed on

5 out of 5 stars

March 21, 2023

Great Bag

Lovely bag for traveling. Worked great as we travelled around Asia


Originally reviewed on

4 out of 5 stars

February 26, 2023

Great, light pack

The water bladder sleeve is a bit small but I was able finagle my 3L into it. Overall, great pack; easily fit everything I carry on a day hike.


Originally reviewed on

5 out of 5 stars

February 21, 2023

Nice pack

I bought this pack for trip to Hawaii. We use it as a carry-on, a beach pack, a hike pack and change of clothes pack. It's done it all! Holds two yetis two towels and some snacks plus other hear you need for the day. Light weight but durable. Great backpack.


Originally reviewed on