Medium Expandable Knack Pack®

Love the pack, great features, great quality, great compartments, great zippers. A friend had gotten 1.0 and I was waiting for 2.0 to become available to get my own. Great buy. The suitcase handle pass-through is an important feature to me. When the pack is really full it's tough to feed the suitcase handle through that slot. I probably had the pack way too full, but maybe something to look at as you continue to make this awesome pack even better!

A great bag, but I wish I had gone with the Large instead of the Medium. Despite the dimensions being nearly identical to the duffel I planned to replace, the layout of the Knack Pack doesn't allow for the same quantity of items.

Overall my only complaints are that it's deceptively smaller than I had imagined and that the laptop compartment could be better padded at the bottom to prevent bumps when setting it down. Beyond that, it's thoughtfully designed, well-constructed, and comfortable to carry all day.

Just used this for our last holiday trip. It has a ton of pockets in all the right places and is solidly built. Everything is well protected and this bag is thoughtfully designed. Thank you!

I bought this for my dad for Christmas after he did all of the research and decided which bag he wanted. He traveled with it the next day and absolutely loves it. I tried it out and can attest to the excellent build quality and overall functionality. I would definitely recommend this bag to anyone looking for a competent daily carry or a flexible bag for multi-day trips.

I ordered this backpack for my husband's Christmas gift at the end of November. Today is December 31 and I have not received it yet.

I gave this as a gift to my brother who often has weekend getaways and also has 2 kids. He really loved it! It's going to be perfect for him. He had never heard of Knack, but he was very impressed with all the pockets, storage, and the expandable suitcase portion.

Our son was pleasantly surprised to receive a Knack Bag. He liked the color (inside and out) and the versatility of the bag. A special thank you to Rachel who took my order!

its attractive, has lots of handy pockets and compartments, and is very thoughtfully made!

Very happy with the bag!!! I've stress tested it on flights, it holds up perfectly. The most unexpected aspect is that for the first time ever in a backpack, I really know exactly where everything is stored and everything is easily accessible, even in the dark and when packed to the brim.
One more thing that might help someone: I use the medium backpack with the new 16 inch Macbook pro. It does fit inside, but the opening is just barely large enough. The first few times inserting felt uncomfortable/scary and it basically takes two hands and turning the bag on its side to take out the laptop. I've now gotten completely used to it, though, and couldn't be happier. But if you have a 16 inch macbook and are leaning between the large and medium knack pack, know that the large will be somewhat more comfortable. Also, when the bag is fully packed, I'm hesitant to use the luggage slide while the laptop is inside, lest it may get too pressured. Not sure if this would be better in the large pack. The important thing to know is if you have the 16 inch Macbook, you will be fine ordering the medium knack pack if that is your preferred size.

I got medium black. Clean Look on the outside. Smart structure, Good quality. Feels light. I like that I can use the back luggage compartment's top open to push stuff in without opening it fully, like for gym cloths, etc...
I love the front compartment, how it opens and the see-through pockets. It's great for the day to day stuff. The front V style zipper is cool looking from outside :) though I personally find I never really use it.

My Biggest Complaint.. I don't like the expansion zipper. It feels cheaper and is super hard to open. Good thing i don't do that every day.

My second complaint, The luggage slide on in medium version is vertical and not horizontal, and it's super hard to push it in. I don't get why the horizontal opening does not exist in medium but does in the large version...