
When I first reported on Slim Pack, I said it may be the perfect backpack. SlimFold, the company behind Slim Pack, asked me to test my theory â and I wasnât disappointed.
Construction
Slim Pack is made up (almost entirely) of a lightweight, water resistant material. Itâs exceedingly thin, but really durable. I happen to have an expensive Nike rain suit made of the same fabric, and have been outside during some torrential Oregon downpours; Iâve got no concern this one isnât going to hold up to rain.
The zippers are also sealed, rounding out the Slim Packâs water resistance nicely. On one side, thereâs a stretchy pocket for a water bottle â but thatâs really about there is to the outer shell.
Slim Packâs straps employ a unique joint that allows them to pivot just under your armpit, making them comfortable for just about anyone. Those straps can also be had with a chest strap if youâre into that (my test model didnât have it).
Thereâs also a small handle up top, and the rear is slightly padded to allow for airflow between your back and the pack. Slim Pack has some padding on the outside layer as well, mostly to keep its shape.
Water resistant
If youâve seen the GIFs on Slim Packâs Kickstarter page and thought âyeah, right,â think again.
Slim Pack is actually water resistant to a degree that borders on IP rating. Itâs not completely sealed, so I canât say itâs waterproof, but you wonât have to worry about your belongings if youâre out in the elements. Its Kickstarter campaign refers to Slim Pack as âweatherproof,â which is accurate.

The zippers may be sealed, theyâre not waterproof; all that means is that you shouldnât try to submerge Slim Pack. For normal use, thereâs absolutely nothing to worry about.
It doesnât even stay wet. The material itâs made of beads water away; a quick shake when you get to your destination flips most water off.
One thing to keep in mind is that the rear of the pack as well as the straps arenât made of the same material, so they will retain water if wet. The side pocket is also a different material, but has to be as the water resistant material the shell is made of isnât stretchy.
Design
If youâre a fan of simple, effective, minimal design â Slim Pack will excite you.
The outer shell is four simple pieces of that âweatherproofâ material and a water bottle pocket, with the front merging into the bottom. Two zippers are the only interruption when facing the bag.
Inside, the pack is equally simple. The main compartment has nothing but a removable computer divider, and the secondary pouch has some simple pockets.
The main divider in that second pocket was designed for an iPad, while the rest are fairly straightforward and open to your needs. I slipped a SSD drive, iPhone 6S Plus and wallet into the bag with ease (and plenty of room left for other stuff).
Slim Pack also opens accordian-style. A few pieces of fabric on the inside of each zippered compartment keep Slim Pack from losing its shape while open, and prevent your stuff from spilling out.
In use
Slim Pack is a work of art. It also has a few tradeoffs.
The minimalist interior begs for more. In a Kickstarter video, its creator Dave Zuverink uses zippered pouches to hold cables and chargers in the main compartment. I did the same, but used an Eagle Creek travel cube.
While the bag doesnât have a dedicated home for your cables and such, I found the packing cube to be a welcome addition to the bag; I actually prefer it to the more traditional âeverything in its placeâ bags.
Having a water resistant bag is great for an Oregonian like me, but letâs be realistic: itâs not as if any of us will be in rain for a bulk of our time. Still, the material Slim Pack is made of is wonderful beyond being resistant to rain.

It picks up scuffs a bit easier than a traditional backpack, but theyâre easily removed with a wet hand or cloth. Unfortunately, Youâll want to watch where you set the bag down; the bottom has no added protection.
Iâll note that my rain suit made of the same material as Slim Pack is machine washable, but Slimfold makes no claims that its bag is. Logically, I canât see why you wouldnât be able to machine wash and line dry the bag, though.
Slim Packâs zippers are also tight. Between the overlying flap and diminutive size, theyâre not easy to use with one hand. If youâre a ârip the bag open to grab my stuffâ type of person, Slim Pack takes a bit of getting used to.

Itâs also not able to pack flat, so keep that in mind if youâre considering it for travel. The bag has a touch of high-density EVA padding, and the curved front bottom doesnât lend itself to flat packing. You could, but you risk compromising the bagâs integrity. Itâll fit under the seat in front of you on a plane just fine, though.
Update: It seems Slim Packâs padding is actually removable via the bottom of the interior. I wonât speak to how easy it would be to work the padding back into the front of the pack, but turning it inside-out actually allows access to the padding. Machine washable and flat-packable, but likely tricky to re-stuff once itâs removed.
I was struck with how comfortable Slim Pack is, too. Iâm 6â2â, and like a pack to sit higher up on my back. Slim Pack is perfect for that, and the adjustable straps fit better than any bag Iâve ever used.
Itâs also remarkably light. I tend to travel with a MacBook, and often face-palm myself for having backpacks heavier than the sum of what I put into them. Slim Pack is probably lighter than whatâs inside, as a backpack should be.
My test bag also came with a yet-to-be-announced keyring holder, which has a dongle for your keys that attaches to a receiver in the bag. If I were a city-dwelling commuter, Iâd use that feature daily.

Whoâs Slim Pack for?
Slim Pack is positioned for commuters, especially those on bikes. For them, the bag is a no-brainer. Slim Pack is svelte, modern, lightweight and water resistant; thereâs not much more you can ask for.
Many of us who donât fit that category will also find Slim Pack great. I like to pack light when I travel, making Slim Pack just about perfect. Thereâs nothing too complicated about it, and while its simplicity begs for add-ons like a packing cube, itâs nicer than having to figure out what stuff goes in which pocket like I have to with other bags.
The only buyer Slim Pack may not be for is one who packs heavy, or has a massive computer. Slim Pack can accommodate a 15-inch MacBook Pro just fine, but if youâve got a larger computer, I canât say Slim Pack would work for you even with the divider removed. Itâs possibly less durable than some other backpacks, but Iâm not a one to abuse bags, so thatâs not concerning. If you find yourself tossing bags onto a seat on the train or drop-kicking them under your desk, Slim Pack may not be your best choice.

Verdict: yeah, get one
In testing Slim Pack, I compared it to a few other bags I have. I also donated those bags to Goodwill once I started using Slim Pack.
There might not be a higher compliment I can pay it.
Trade-offs exist with Slim Pack, but that can be said for any bag. Now that Iâve used the packing cube with Slim Pack, itâs a much better experience than buying a heavy structured bag with a ton of pockets.
For most, this will be a fantastic bag. I really like the minimalist approach to design and functionality; Slim Pack does exactly what I need it to, how I want it to.
It may be a bit pricey at $179, but any concerns you have about cost assuage once you use it. Given my proclivity to travel as simply as possible and stay productive, Slim Pack is a hands-down winner for me.
Note: If youâre interested in grabbing a Slim Pack, check out the Kickstarter campaign. It still has 26 days to go, and a few funding options that might save you a few bucks. Iâll also note Slim Pack is already being sampled (which is why I am able to test it), and Zuverink tells me everything is on pace for a December delivery schedule as promised â and heâs never given me reason to doubt him.
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