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.

Expandable Pack Reviews

Large Expandable Pack

Customer Reviews

Based on 61 reviews
Amazing backpack

Great travel backpack. It’s more than I could have possibly wanted. Shout out to Bradley @stuffandthings on youtube for the review which led me to this amazing backpack


I purchased this back pack because there was an option of sizing. As a big man myself I always look funny wearing a backpack that was too small. Having the ability to have a large size it really made wearing it comfortable plus the workmanship of this back pack is unbelievable. From the zippers to the shoulder straps everything is so right and is very sturdy. Lastly the compartments were constructed in such a way that I can carry everything without having to use a carry-on rollaway type case when going on weekend trips. I urge any avid traveler or business professional to get one of these back packs.

Comment on knack pack after using it for three months

I had purchased a medium sized knack pack about four months ago. As a whole, I love this bag for certain reasons:

1. The knack pack could make a well balance of daily work use and expansion of size when I have day out with my baby.

2. It could keep the supere sleekness even I put lots of things inside it

3. Well designed compartment no matter for daily work or baby caring. I used the bottom compartment to put wet tissue, soft pad and some diapers. It quite convenient when my baby has to change diaper

Two points for your consideration of improvement:

1. The key buckle was quite inconvenient to access when I have to take it out or if the main compartment was near full. I suggest to rearrange it at the top of the bag or may be inside the water bottom compartment.

2. It would be perfect for me if the shoulder strap could be hide inside the back of the pack and another handle could be built in either side of the bag which could change to a brief for business. Just like the Forge pack of Black Ember. For consideration of maintaining the sleekness of the bag, the handles (both on top and at the side) could refer to the Evergoods CPL 24. It makes a well balance of sleekness and function of the handles.

Better than Expected!

This bag is amazing! I am a pedestrian commuter in Boston and was so tired of lugging work backpack and gym bag a mile each way every day. The Large Knack bag solves it all. I can expand and fit full business clothes, shoes, etc for the gym and still carry all of my business essentials (laptop, files, cords, water bottle, lunch, etc)! Recently went overseas, and this bag was fantastic, fits under the seat when not expanded and so lightweight. Love, love, love......

Fantastic bag

I have owned many, many laptop bags from the likes of eBags, Briggs + Riley, and others. This is the first backpack I've had that combines great looks with great functionality. There are just enough organizational pockets, the ergonomics are great, and it travels well. And if I overstuff my carryon suitcase, I can open the expandable section of the Knack Bag and throw my jacket or extra clothes in there. This bag is a winner.

Super functional, great looking bag!

I bought this for my super picky husband who wanted an extra backpack for his gaming laptop when he has international trips or family travel so he can bring his gaming laptop as well as his work laptop. It has so much room he can actually fit both in the backpack along with the large iPad and all the charging cables. He doesn't need the work laptop bag unless he has a meeting. There's also room for clothes and it looks good! I love when function marries great design.

Almost the perfect bag. Almost.

I bought the large because the medium was just slightly too small for my laptop. I’d love to see the medium be able to accommodate a 15.6” laptop. But about the large bag, it’s good with just a couple flaws that keep it from being a great bag.

First the things I like...I like the cable garage at the bottom of the bag. Keeps my laptop charger out of the way and in its own place. I like the water bottle pocket and how it expands inward. The interior space is plenty big enough to handle all the things I need to carry even with a water bottle in the pocket. I like the sunglasses pocket that also has a spot for easy access to gum/wallet/boarding pass/etc. I haven’t used the expandable section of the bag yet but it looks to be big enough to handle at least a 2-day trip comfortably.

The things that keep this from being a great bag are the front triangular pocket and the tablet sleeve inside the main compartment. First the triangle pocket...the only compartments inside this pocket are 6 business card sleeves. Nobody needs that many business cards and those pockets are not deep enough to store anything else useful in them. I’d love to see a complete redesign of the front pocket with a couple pen holders maybe a small zippered pocket and then some deeper pockets that could hold flash drives, ear bud cases, charging bricks, chapstick...things if that sort. Secondly, the tablet sleeve is low in the bag or too short. Every time I try to just slide a book in to the main compartment, it catches on that sleeve and doesn’t just slide in neatly like it should. I would flip the zippered pocket and the tablet sleeve and put the tablet sleeve at the top of the main compartment and the zippered pocket at the bottom. There’s already a zippered pocket at the top of the main compartment on the other side, you don’t need two that are that easily accessible.

All in all, it’s a good bag that does what I ask. But I’ve had to buy some organizers to go along with this bag to make it...

Hi Daniel, Thanks so much for the input. We review every single customers comments when we look for potential redesigns of our Knack Pack. Also wanted to let you know behind the business card holder is a larger pocket made out of RFID fabric. Here you can store credit cards, passports, or any larger items you want to keep handy with the added security of the scan blocking fabric. So glad to hear our Large Knack Pack is working so well for you. Knack Customer Service
It’s Perfect!

In my daily home >car>train>bus>office in a major midwestern city, this bag is perfection! I used to carry two backpacks for the office and gym, but not only does this bag replace them both for daily life, it’s easy for me now not to have to pack another overnight bag for a business trip or weekend getaway with the family.

It’s also the perfect balance of looks and function... I can easily carry lunch, shoes, workout clothes, a computer, presentations, water bottle and more in separate, organized compartments. The only thing I hate is I didn’t discover it sooner!

Love this bag

I have the Large Knack. I was worried that it might be too big for every-day-use. But it works great. This bag is slim enough for easy use to and from the office. It is not too bulky or unwieldy. It is slim, trim, and looks great. I actually keep one of the straps tucked away so that I don't have too much "dangling" from the bag. This is a feature I appreciate. The storage is ideal. The contrast fabric makes seeing what I need to find easy. My other bag was all black in the pockets, and I lost things all the time, and lost time rummaging for that battery or pen that I was in the depths of a pocket. The Knack's orange and white lining means that things are easy to locate quickly. The genius of Knack's design is that the exact same bag is perfect for my work when I travel. I travel once a month (about) for 3-4 days. I can hold the clothes I need in my Knack when it is expanded and have no additional luggage. I am 6'3" and 250 lbs - so my clothes take more room. I use the packing cubes (1 large, and 2 small cubes) which help use the space efficiently. I love this bag!

Gives me the flexibility I need

If one travels frequently, you realize flights today are almost always full. One bad storm at a major hub airport and you can be stuck for 2-3 days. I had such experience in 2018 where Thunderstorms caused us to divert and then fly into Chicago after the weather cleared a few hours later. I was flying from east to west going to Seattle. I got to the Seattle gate to find the flight had already taken off and I could hear the gate staff telling other customers they were sold out for 2-3 days. I saw the Portland OR plane was still there also delayed. An airline representative asked me if I had checked luggage and for once I did not. They said "run" and catch the Portland flight. I made my meeting! Had I checked luggage I would have been hosed.

This knack with my wheeled carry on is all that I need for 95% of my travels and it's perfect. I've got the older version with the waist strap which I think has been revised to a sleeve to put the knack over the handle of a wheeled piece of luggage. Both are great options.

The clothing compartment ensures I always have a spare shirt + trousers + socks and 1-2 sets of clean drawers just in case my wheeled bag does get checked and not arrive, or if I stupidly stain a shirt or something in the middle of an actual day. Ever step in a big puddle on a work trip and wish you had a spare dry set of socks with you? Now you can! Ever fly somewhere HOT AND HUMID and wish you could do a wardrobe change? Now you can!

All the pockets allow me to keep all the stuff needed in proper places where I can actually find them when I arrive. The Knack looks like a quality piece you'd expect at a high end shop. It's very comfortable to wear for long periods of time. In the end we bought a second as the first one went to college with our son and so I got another one for myself.

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