SKU: WS19 In and Out
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A highly-compressible daypack for light & fast summit bids.

Most summit packs are glorified stuff bags with flimsy shoulder straps. However, our IN & OUT is a fully engineered yet featherweight solution. Designed to stuff into its own front, mesh pocket – packing the size of a small water bottle – it features contoured shoulder straps and a sternum strap. Built from 100D CORDURA® mini-rip for high abrasion and tear resistance, this full-featured, packable daypack will get you IN & OUT.

  • Highly breathable, low-profile fixed yoke contours to the body.
  • Stuffs into its own front pocket (8.5”x4.5”x4”)
  • Contoured shoulder straps with adjustable sternum strap
  • Two, external zippered access pockets
  • One, side stretch-woven water bottle pocket
  • Two tool carry loops with secure straps
  • Side compression straps
  • 2 L (70 oz) hydration reservior pocket against frame with ports to drinking tube above shoulders
  • 100D CORDURA® Mini Rip for durable, lightweight, packability
  • YKK® zippers
NameUPC Code
WS19 In and Out-Indigo888564169872
WS19 In And Out-Storm888564179444
WS19 In And Out-Henna888564179420
WS19 In and Out-Black888564169858
WS19 In And Out-Adobe888564179383
WS19 In and Out-Dark Khaki888564169865
WS19 In And Out-Forest888564179413
DUNS Number:059122783
1 lb
1159 cu-in
harnessing style
Fixed Harness

The results are in
4.3 / 5
Based on 3 Reviews

A incredible stowable pack (4.5 Stars) - Two suggestions


Fits the bill, exactly what I was looking for: A backup stowable pack that can serve as a daypack for hikes, family travel pack, or everyday (i.e. diaperbag/water/snacks bag). The quality is as expected from MR; 100D CORDURA is boss. The two front access pockets are ideal sizes; not to small, not too big. One huge delighter - The front mesh netting feels thick/heavier duty - Me gusta. Me gusta mucho.

1) As previously mentioned, the one side stretch water bottle pocket is not very useful for its intended purpose. It's incredibly small; I can BARELY fit my small 16oz Nalgene. I've resorted to getting a collapsible bottle (after much research I chose an Ultimate Direction bottle) - I can get over this though.

2) If this had a hip strap - I'd probably wear this pack 24/7/365; in bed, in the shower...everywhere. I'm sure that'd affect the pack-ability, but man, that'd be the cherry on top.

Great pack but don't plan on carrying water!


I have two are Mystery Ranch packs so when I saw this super light pack I knew I had to have it. It is well constructed and is made of really durable fabric yet lightweight. It is far better than comparable daypacks I have seen and purchased. I think it will take a beating without any harm. I only have one complaint. The stretch side pocket for a water bottle is ridiculously narrow. A typical smart water bottle will fit, but only with wrestling the pack around for quite some time. I thought perhaps there was a drawstring I was not seeing that could adjust the opening, but I fear it simply was not designed with adequate sizing for most water bottles.

Performs great--a bit of a mystery to fold back up! :)


I took this up Mount Monadnock this weekend on a snowy, icy scramble to the top. I was carrying water, an extra raincoat, some protein bars, and ended up putting a heavy coat inside too until we neared the top. In other words, not too heavy--but nevertheless the load stayed firm and tight against my back, with full movement for my shoulders and arms (which was necessary as I had to use my hands to climb through the snow and ice) and no sloshing around or shifting of weight. Performance was great and it's super light.

My only suggestion is for Mystery Ranch to post a video of how to fold it back up again and put it in the middle pouch (the middle, not the top, pouch is the key).