Our 2-in-1 expandable backpacks are built to be just as efficient as a daily carry or travel bag. You're competent and smart, your bag should be too.

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Expandable Backpack Collection

Knack expandable backpacks are uniquely engineered to offer versatile capacity with a seamless expansion feature that increases packing space by up to 50%. Designed for efficiency, Knack Packs effortlessly adapt from a sleek everyday carry size to a roomy travel bag when you need extra space. The expansion zipper is discreetly integrated, maintaining a streamlined silhouette whether expanded or compressed. Made with durable, water-resistant materials and reinforced with high-quality YKK reverse coil zippers, Knack expandable backpacks protect your essentials from the elements. Ideal for commuters, travelers, and everyday users, they provide smart organization, comfort, and flexibility—making expansion capability a must-have for dynamic lifestyles.

Expandable Backpack Features

  • Twice the Space Without the Bulk

    Unlock more room with a sleek, hidden expansion that transforms your everyday backpack into the ultimate travel companion.

  • Series 2: Small Expandable Knack Pack® Backpack Knack Alloy Gray#color_alloy-gray

    Pack Smart, Access Fast

    Featuring our patented suitcase-style opening, flat lay your bag and organize and grab your essentials in seconds—no digging required.

  • Weather Tough, Travel Ready

    Built with water-resistant fabrics and lockable zippers, the Knack expandable backpacks protect your gear and give you peace of mind on the go.

The Expandable Backpack Difference

We’ve created a collection of expandable laptop backpacks that combine the function of an everyday work bag with the function of a carry-on travel bag in one unique backpack. With Knack, one bag provides endless possibilities.

  • Main everyday compartment with next-level organization
  • Separate, hidden, expandable suitcase compartment
  • Easy-access, protective laptop compartment
  • Lightweight, durable, water-resistant body fabrics
  • Lockable zippers and anti-microbial lining

Expandable Backpacks FAQs

Can I use the Knack Pack as a carry-on with the expansion compartment open?

Yes, the Knack Pack is designed to meet most airline carry-on size requirements even when the expansion is fully unzipped, making it an ideal choice for travelers who want packing flexibility without the hassle of checked luggage. Please note: Carry-on size limits vary by airline and often include handles and wheels in the measurement, so be sure to check your airline’s specific size restrictions before you fly.
Are the expansion zippers durable and secure?

Absolutely. Our Knack Packs use premium YKK reverse coil zippers with water-repellent coating for long-lasting durability and smooth operation. Plus, they’re lockable, so you can keep your belongings safe whether expanded or compressed.
How organized is the packing space when the Knack Pack is expanded?

Both Series 1 and Series 2 Knack Packs feature thoughtfully laid-out expandable compartments with mesh and compression pockets inside to keep clothing and essentials neat and accessible. The Series 2 Knack Packs feature extra organizer pockets in the front for enhanced sorting, making them perfect for both business travelers and weekend trips.
Can I keep my valuables secure in the expandable section of the Knack Pack?

Absolutely. The expandable compartment features lockable YKK zippers, allowing you to use a lock or cable to secure your belongings. This added layer of security gives peace of mind when traveling or storing valuable items in the expanded space.

Testimonials

I'm traveling every week and rely on my bag to hold my gear but also look good in a meeting room. I must have looked at over 400 laptop bags. I even bought a couple of things and had to return them. The Knack is perfect. I love it! I love the pockets, I love the quality, I love the expansion. It's got some thoughtful touches (the mesh pockets let you see everything in them, the key fob is long enough to be useful).

Eric F.

I got this 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.

I took my new Expandable 2 on my first visit to NYC and it worked out perfectly! On some outings I used the expandable compartment to carry my mirrorless camera with attached super wide zoom lens hidden from view like on the subway. The layout of compartments is awesome and extremely useful! As a Christ follower we’re supposed to love people and use things but I have to say that I LOVE my Knack Pack!

Duane P.

Very nice backpack that doubles as a weekend suitcase. Lightweight, roomy and expandable. It looks very sleek and quality and would work great for business travel or an everyday carry bag.

Ikie L.

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