Elevate your travel game with a large Knack Pack—the only bag you’ll ever need for extended trips, big ambitions, or life that refuses to fit in a small compartment. Designed with maximum versatility and generous capacity, these expandable packs seamlessly move from the office to overseas adventures and can hold your laptop, daily gear, and up to 3 - 4 full outfits without ever feeling bulky. Go beyond the ordinary: choose the large Knack Pack and experience next-level organization and effortless style for every journey that comes your way.

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Shop Large Backpacks

Discover the power of spacious organization with Knack’s large backpacks—designed for those who need room to pack it all without compromising style or comfort. Perfect for extended trips, heavy workloads, or everyday use when you just can’t leave anything behind, these backpacks combine generous capacity with smart, intuitive compartments that keep your gear perfectly organized and accessible. With space for your tech essentials, bulkier items, and up to 3–4 full outfits, Knack’s durable and lightweight large backpacks deliver ergonomic comfort and lasting quality. They’re the ultimate choice for travelers, professionals, and adventurers alike. Explore our collection today and experience how a large Knack backpack can transform your carry experience—big enough to hold everything, but designed to make every journey feel effortless.

Large Size Backpack Features

  • Series 2: Medium Expandable Knack Pack® Backpack Knack Midnight Black#color_midnight-black

    Suitcase-Style Compartment

    Effortlessly lay your bag flat like a suitcase to pack 3–4 full outfits in a dedicated space, keeping clothes and travel essentials perfectly organized and completely separate from your tech and work items. Enjoy unbeatable organization, simple access, and ultimate protection for your gear—all in one bag built for big journeys.

  • Durable and Weather-Resistant

    Built from custom-developed, water-resistant fabric with reinforced stitching and weatherproof zippers, ensuring durability and dependability wherever you go.

  • Lockable Zippers and Security Details

    Main and travel compartments feature lockable zippers for added peace of mind during transit. RFID-blocking pockets protect passports and cards from electronic theft.

About Knack

At Knack, we believe life should be simpler—and so should your carry. Our journey began with one simple realization: too many people juggle too many bags every day. Inspired by the vision of a One Bag Life, we set out to change that. Bringing together passionate travelers and experienced designers from brands like Tumi, Coach, The North Face, Samsonite, and eBags, we created Knack: a brand built around the belief that your bag should do more, so you can carry less. The result? Smart, stylish backpacks that effortlessly combine work, travel, and play—giving you the freedom to do it all, with just one bag.

Large Backpacks FAQs

What types of trips or daily uses is the Large Knack Backpack best suited for, and how much gear can it comfortably carry?

Large Knack Backpacks are purpose-built for business travelers, adventure seekers, and anyone needing dependable space for longer trips or busy days. With a roomy 30L base that easily expands to 46L, it’s perfect for extended travel, work conferences, or action-packed weekends—fitting a 17" laptop, 3–4 changes of clothes, shoes, and tech gear. Smart design features like a suitcase-style expandable compartment, quick-access laptop sleeve, hidden water bottle pocket, and built-in security zippers keep you organized and ready for anything. Thanks to its padded straps and comfort-cool back panel, the Large Knack handles full loads without sacrificing comfort, making it your all-in-one solution for packing and carrying everything you need, wherever the day takes you.
Will Large Knack fit under airplane seats as a carry-on?

Yes, the Large Knack Packs will usually fit under airplane seats as a carry-on. Specifically, when not expanded, Large Knack Packs will fit under most airline seats and easily fit in overhead bins, even on international flights. Once expanded, depending on the contents in the bag, the backpack may be too large for under-seat storage but will still meet most global airlines’ carry-on requirements for overhead bins. It's important to check your airline baggage requirements beforehand as size requirements change based on the airline.
How comfortable is the Large Knack to carry when fully packed?

Large Knack Packs deliver exceptional comfort even when fully packed, featuring padded shoulder straps, a comfort-cool memory foam back panel, a removable sternum strap, and a waist strap included with the S2 Large model (available for purchase separately with the S1 Large) for extra support and balanced weight distribution.
What organizational features make the Large Knack stand out?

Large Knack Packs are loaded with intuitive organization: a padded 17" laptop sleeve, fleece-lined tablet pocket, mesh pockets, quick-access top pockets, a hidden water bottle sleeve, and a separate suitcase-style compartment for clothing. Lockable zippers and a stowable harness system add security and versatility, and much more.

Testimonials

The large expandable Knack Pack has exceeded my expectations and I have high expectations being that my last bag was a Tumi. The quality is on point. The number of pockets is impressive and I have never been more organized in my life! I was skeptical that I can really pack for a 3 day work trip in a single bag but it is absolutely doable. Carrying one bag is so much more efficient.

Drew D.

My Large Expandable Knack Pack is a great backpack. I’ve used mine for years now for business travel. And it is by far the best backpack I’ve ever had. It’s well-made, intelligently designed and highly functional. I do not work with or have any affiliation with the company. But I can tell you this is a great backpack. The ability to put a few pieces of clothing in there along with a computer, all the charging cords, etc. and a bunch of files, means that I can use a small roller carry-on as my second bag. So no checked bags for even week-long work trips. I’d be surprised if anyone did not love this backpack.

RGS

I got the Large Expandable Knack Pack to carry around during a business trip/trade show. I had it delivered to my hotel and I spent the evening exploring the backpack. I absolutely cannot believe how much you're able to do with this backpack. I even made a couple gasps when I discovered yet another pocket or another cool thing, especially when I found the zipper to expand its size. Super functional, and can fit so much in it when needed, but can be made more compact when traveling. I would say that it is worth the investment, for sure.

Ryan H.

Obsessed with my new Large Expandable Knack Pack backpack - the compression part is genius - capacity, laptop slot all great!

Belinda C.

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