We designed our Expandable Duffel and Tote Collection for people who blur the line between work and travel. Each duffel bag and tote bag keeps you organized for the office, the gym, or a quick getaway, and expands when life takes you farther afield. With thoughtful pockets, durable materials, and a sleek, minimalist design, these expandable bags make it as easy to move through your day as moving through time zones.
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Expandable Duffel and Tote Bags

Each Knack expandable duffel and tote bag masters the art of versatile travel and everyday convenience. From the sleek Expandable Laptop Tote, which effortlessly transitions from work to overnight get-aways, to the Expandable Metro Duffel, which can handle both office essentials and travel gear, these bags simplify your day. And, the Expandable Travel Duffel is your go-to companion for longer trips, offering ample space with smart organization to cover all your “just-in-case” needs. But what really sets these bags apart is their intuitive expandability—giving you extra room only when you need it. Whether you’re commuting, running errands, or heading somewhere new, this collection is designed to keep you organized and ready for anything.

Expandable Duffel and Tote Bag Features

  • Expandable Capacity

    No matter which style you choose, every Knack duffel and tote is built to adapt to your needs. Easily expand your bag with a discreet zip, unlocking extra space for last-minute gear, gym shoes, or souvenirs picked up along the way. With flexible capacity, your bag grows when you need it—and stays streamlined when you don’t—so you’re always ready for whatever the day (or week) brings.

  • Smart Organization

    With all Knack duffels and totes, you’ll find everything you need at a glance—no digging required. Each bag features pockets for tech and thoughtfully-designed compartments for everything you need to carry.

  • Seamless Travel Integration

    Every bag in the Duffel and Tote Collection comes equipped with a built-in trolley sleeve, letting you slide your Knack securely over rolling luggage handles for completely hands-free travel. Internal organization pockets, durable water-resistant materials, and multiple carry modes mean your bag will be by your side on all of your journeys.

About Knack

Finally, say goodbye to the hassle of juggling multiple bags! Knack sprang from a simple observation that too many people were carrying too many bags at the same time, leading to an epidemic of overloaded shoulders and cluttered lives.

We pulled together a passionate group of frequent travelers and bag enthusiasts (from Tumi, Coach, North Face, Samsonite, and eBags) and created a revolutionary expandable backpack that transitions as easily from work to working out as it does from a client meeting to a weekend with friends. We called this backpack a Knack Pack and it was the first everyday bag that’s clever enough to replace two.

While Knack today is more than just backpacks, each of our products’ innovative designs and thoughtful features continues to help you effortlessly carry everything you need, while keeping you organized and hands-free at the same time. Experience the difference that Knack makes in every journey.

Expandable Duffel and Tote Bag FAQs

Does expanding the bag make it bulky or hard to carry?

Not at all. Our expandable design keeps balance and comfort in mind—even when fully expanded. The Knack Duffel Bags still fit comfortably in most overhead bins, and our Expandable Tote Bags maintain their polished, everyday shape. Both are made with lightweight, durable materials that evenly distribute weight, so you can carry more without feeling weighed down.

Can I use a Knack Duffel or Tote as my personal item when flying?

Yes, Knack Packs meet most airline personal item requirements, which is one of the reasons travelers love Knack Bags. Both the Expandable Tote and Expandable Duffel are designed to fit under most airplane seats or in overhead bins when not expanded. When you need extra room, just unzip the expansion and you’ve got space for everything from an extra pair of shoes to a cozy travel sweater. It’s like having two bags in one—without the airport stress. All airline requirements differ; be sure to check yours before traveling.

Which Knack bag is better for daily use — the Tote or the Duffel?

If you’re hauling a laptop, planner, gym gear, and maybe a water bottle (or two), the Knack Duffel Bags might be your match. But if your daily carry is more minimalist (laptop, wallet, charger, and a few extras) the Tote Bags win for its slimmer profile and polished look. Both bags have Knack’s signature organized compartments and expandable design, so you can easily transition from a weekday commute to a weekend getaway without swapping bags.

Are Knack Tote and Duffel Bags durable enough for everyday and travel use?

Absolutely. Every Knack Bag is made with premium, water-resistant materials, reinforced stitching, and high-quality zippers built to handle your busiest days — from the 9-to-5 grind to red-eye flights. Millennial travelers love that Knack Bags don’t just look good — they last. You can count on your Tote or Duffel to keep up with your lifestyle, wherever it takes you.

Testimonials

Wonderful bag. This duffel was highly recommended by my two sisters who each have one also. I’m using it for the first time on my vacation and very impressed with how much I can pack in all the convenient places. Perfect under the seat carry on with all you need readily available for your in flight trip.

Kathryn C.

Carefully planned and designed, this goes everywhere with me. Even fully expanded, it fits under the seat of every plane I've had it on. Love the "secret" zippered compartment! Carries quite comfortably in backpack mode and clamshell style makes for easy access to items. Proven durability too. For me, this was by far the best value out there.

Baron

I love the new bag. It does everything. The only addition would be a front zipper flap to quickly access important items.

Jeff C.

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