When we started Knack, we focused on creating backpacks that freed people from carrying multiple bags at the same time. Since our launch, we’ve heard from hundreds of people who love our concept of One Bag Life™ and who also give us great feedback on how we are doing. Their honest comments help us to continue creating game-changing products and customer service. Because we find reviews from Knackpackers to be so helpful, we thought we would share them with you as you think about whether One Bag Living is right for you.

Medium Expandable Pack

Customer Reviews

Based on 94 reviews
Does everything you need it to do.

Amazing bag does everything really well

Excellent bag!

I have been using the bag for the last few weeks and keep finding additional, well thought out features I did not know about or expect. Storage is excellent! Organization is excellent! Space economy is excellent!

Great Bag

Look in order to understand how much I like this bag, I bought it from Europe and Knack doesn't send it here. Meaning I had to use a service to send it. I paid 100 dollars of transportation fees + 80 dollars of duty taxes. That is more expensive than the bag itself, even then, it was worth it. This is how much I liked the bag before I bought it and still not regret it. Of course I haven't yet extensively used it, but still the materials, the design, all transmit quality. I have no doubts it will stand the test of time.

Only Way to Travel

The bag is exactly what they advertise and more. The build quality is exceptional. The organizing pocks and pouches are well positioned to optimize the space in the bag while still not taking up valuable space in the main compartments. Overall if you want the perfect travel bag, this is it. The one thing it is missing is a pass-through cell phone charging cable, but given how great the bag is, I can overlook it.

Pretty awesome backpack despite what others say!!

After about a month of reviewing tons of backpacks I zeroed back in on the Medium Expandable Pack. My wife ended up ordering one for me for Father's Day and I could'nt wait to receive it since it was back ordered. I was using an OGIO backpack prior and it was nice but too BIG and bulky. This Medium is just right!! I couldn't be happier with it. However, yes I know.... The triangle pocket is cool but the organization inside for cards, passport, or whatever is a little weak. I am thinking if the organizational pockets had some elastic to them, then they might be a little better. They definitely could be a little deeper too. Other than that minor gripe, I used it on an overnight flight and it was perfect. A hair tight since I popped some sneakers in it. But all in all, great backpack!!! Thank you!

The One I’ve Been Searching For

THIS IS IT! I’ve been looking for an expandable hybrid bag for years and I found it! I travel for work and needed a place for a few days worth of clothes + a safe spot for laptops and hard drives. This is perfect for my work trips. When zipped up and compact it’s perfect for a day bag and working at a coffee shop. Recently I took it on a big hike in Norway and it was comfortable and perfect for it. I receive a lot of compliments on the color and design (I have the medium green pack). So for I’ve turned a colleague on to them and she purchased one for her recent trip to Europe. Can’t recommend enough!!

Great Weekend bag!

This is the 2nd Knack I have ordered and I love it. Great size for a weekend getaway and it doubled as a hiking backpack when we got to our destination. The bag really holds everything needed for a quick trip or is a great carry on for air travel.

Great Bag!

Perfect size for daily use and overnight stays

Really Good!

I have tried ALOT of bags. The Knack medium is finally a bag I will use for a long time. The bag is so versatile for work, travel or everyday use.

Medium Pack

Very good bag. Like the way it expands. Looks and feels on the back.
The organization has not been thought through. I own the Nomatic as well and can get all my tech gear a place in it easily. This pack, forces me to carry a tech kit. Not that there isnt space, the problem is the pockets, are unusable. Especially the front one. Have no idea how to use them. A few rightly placed and sized mesh pockets in the front as well as the middle compartments and their flaps would have been great. That is the only improvement I would suggest.
Overall, I like the pack except for the pockets and organization. That needs some more improvement

Large Expandable Pack

Customer Reviews

Based on 45 reviews
Very happy with this bag overall as a daily carry and travel bag.

I have been extremely happy with the purchase of this bag. Love how the main and front triangle compartments fold open, giving a good visual of the contents without spilling anything. It has the feel of handing you it's contents which combined with the smooth zippers that can be used with one hand, I can get what I need blindfolded. The amount of space is perfect for my daily carry where there is just enough space for an extra sweater or jacket. The expansion gives exactly enough space for my 2 packing cubes and toiletries. I do wish the bottom compartment was big enough for a pair of shoes. I don't want to put my laptop cable there as that is a 3rd zipper then to get my laptop setup but it's too small for anything beyond a pair of flip flops.

Comfortable but the back panel gets sweaty on my bike rides to the office. The off center hip belt is also kind of annoying and just barely tightens enough for my 30" waist. Also the chest strap needs an elastic to hold the excess strap so it's not bouncing around while walking. Shoulder straps are great. The clips that hold them on are really nice and can be used to hold excess strap.

Overall I really like the look. The grey was a bit darker than expected but I like even more than the pictures. It just looks good sitting there in my room. It would be nice if it stood up on it's own but it's solid enough to lean against things really well.

Excellent hybrid travel bag

Absolutely love my Knack Pack (large). I wanted a one-bag-travel bag that can compress and used once I get to my site, and it has exceeded my expectations. The bag is made of high-quality materials, the pockets all make sense, and it has plenty of room for my work gear AND some clothes. Their packing cubes (I got two medium and one large) are also excellent and make packing/unpacking a breeze. Great bag, thoroughly enjoying it.

Great bag few improvements needed

This is one of the best backpacks I ever owned. The size of it is great and space is amazing. Few recommended things to perfect it:

- the zippers get stuck sometimes
- the back memory foam is great but gives you a sweaty back after a while of carrying.
- the front pocket with 2 zippers could have better organization as the current form limits what could be placed.

I know knack will get it fixed and my only regret is that I will have to purchase and pay for the newer version at some point.

Does everything you need it to do.

Amazing bag. Easy accessibility to everything in the bag. The expansion is great couldnt really ask for more if u just want one bag in your life

From Europe

Received my bag through Stackry, took me a bit of effort :). What I like:
- overall quality
- look of the bag, not too flashy
- laptop compartment
- small compartment on the upside of the back end
- overall placement of the compartments

What could be better:
- i really miss one "secret" compartment on the inner side of the bag (against my back) to hold wallet on phone securely
- the triangle section compartment - cant really find any use for it?

Better than I imagined

After doing research for a few months via YouTube and everywhere I could find any information on this bag, I finally pulled the trigger. I am thoroughly impressed in every way. the durability of this bag is unparalleled and the thought put into every pocket, zipper, and insert is remarkable. The way I am able to pack now makes my travel that much easier. I use the backpack every single day, even when I'm not traveling, because there is a place for everything. I hope this bag lasts me a very long time. Everything I can see right now tells me I won't have to worry about another bag purchase for several years.

Outstanding travel pack!

First, full disclosure, I am a freelance bag designer and was involved in the initial creation of the Knack pack. That said, I am extremely pleased with how it turned out. I've just returned from a 4 day trip (in a sense, a field test) with the large size, and all my clothes easily fit in the clothing compartment. The pack was quite heavy with my clothes, laptop, chargers, etc, but it's very comfortable and carries weight well. The hip belt and sternum strap do a fine job of weight distribution, and the shoulder straps have just the right amount of foam without too much bulk. A small quibble I might have is replacing some of the business card slots in the front pocket (I don't use them, so it's really a personal preference). The only other thing I would change is making more room in the bottom compartment for my laptop charger, it's a wee bit cramped but still works fine.

I would probably not use the pack in daily use around town, but I bought it for traveling, so this is no big deal (and the smaller size would be more suitable for day to day usage).

Great job guys! 5 stars all the way.

Large Knack Pack

It is a wonderful backpack I'm starting to develop some kind of emotional connection with. I use it as edc bag, and have found the use for every pocket. When I go grocery shopping after work, I expand the backpack, and this feature eliminates the need in plastic bags, and I hate to carry weight in my hands. It is super roomy yet slick in compressed form. Build quality is top notch. Thank you for developing this little wonder. I hope it will last for years.

It’s like a carry on suitcase and a work backpack in one!

Fully packed in the luggage compartment it easily fits two pair of jeans, 3 long sleeve shirts, 2 pairs of shoes, travel toiletries, socks, etc.
The work compartment fits everything you’d need for work. Plies a place for all items, keys, phones, glasses.
I strapped it on and walked 15 minutes in town - really comfortable.
All that and no bigger than a small roller bag. (With which you’d need a computer bag on top),


Used my new Knack Bag on a six day three city trip. Nice to only carry one bag! Airports became a breeze. Thoroughly impressed. A keeper for sure.