Series 2: Medium Expandable Knack Pack®
- Regular price
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$265.00 - Regular price
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- Sale price
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$265.00
or 4 interest-free payments of
$67 with
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Laptop: Fits 16" Laptop
Outfits: 2 - 3
Unexpanded: 24 Liters
Expanded: 35 Liters
Underseat: All Jets
Overhead: All Jets
Description
Meet the Series 2 Medium Expandable Knack Pack — the only bag you need when your day shifts from work mode to travel mode without warning. Designed for people who like to keep life simple, this pack blends modern styling with smart, built-in organization and a roomy, expandable travel compartment. Whether you’re commuting across town or catching a last-minute flight, it keeps your essentials organized, protected, and easy to reach so you can stay focused on your day.
Corporate Orders
For orders over 10 units or for Knack Products with custom corporate logos, please contact: corporate@knackbags.com. To learn more about corporate gifts, please click here.













































































































Series 2: Medium Expandable Knack Pack®
- Regular price
-
$265.00 - Regular price
-
- Sale price
-
$265.00
Key Features
Key Everyday Features
- Midnight Black, Steel Blue, Olive, and Alloy Gray colors: Internal easy-access, padded laptop pocket for 16" laptops
- Berry Blue color: Outside-access, padded side-zip computer pocket for 15.6" laptops
- Spacious main compartment with organization pockets, fleece-lined tablet pocket and removable key leash
- Hidden, zip-away side water bottle pocket
- Zip tuck-away back storage pocket for shoulder straps
- Side handle for easy carry
- Removable, adjustable sternum strap
- Black metal Knack logo hardware
Key Travel Features
- Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes with easy-access suitcase lid
- Meets most popular carry-on requirements as well as fits under most seats
- Hidden trolley sleeve slips over wheeled luggage handles
Key Technical Features
- Custom-developed, durable, water-resistant body fabric
- Molded, comfort-cool foam back panel
- YKK™ water-resistant zipper with custom-designed pullers
Product Specifications
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Material
Fabric: Lightweight, 420 denier, high-density nylon fabric woven with high-twist yarn for great durability. PU coating for water-resistance. Tough 840 denier ballistic nylon bottom panels for enhanced wear characteristics.
Lining Fabric: Custom, stain-resistant, 150 denier polyester logo print lining with anti-microbial treatment to inhibit mold and mildew
Zippers: Water-resistant YKK™ reverse coil zippers
Zipper Pullers: Strong, custom-designed cast zinc alloy zipper pullers
Hardware: Duraflex™ buckles and sliders
Back Panel Material: Low R-factor, customized, comfort-cool EVA memory foam
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DIMENSIONS
Pack Dimensions (LxWxD):
- Unexpanded: 19" x 12" x 4.5"
- Expanded: 19" x 12" x 9"
Laptop Pocket Dimensions (LxWxD):
- Pocket Opening: 15.5"
- Dimensions: 15.75" x 11" x 2" (fits 15.6” laptop)
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WEIGHT & VOLUME
Weight: 3 pounds
Unexpanded: 24 Liters
Expanded: 35 Liters
How to live a one bag life - every day
SWITCH IT UP
Backpack, briefcase or tote? The choice is yours. When you want to change from a backpack, simply unclip the shoulder straps and tuck them away in the zip back panel pocket and voilà!
CARRY IT ALL
The spacious main compartment is a pocket-lover’s dream with two generously-sized, soft monofilament mesh organization pockets. If that’s not enough, there’s also a protective, fleece-lined tablet pocket and another pocket for your batteries/cables/chargers. Finally, the compartment's lockable zippers keeps everything secure.
ORGANIZE YOUR DAY
On-the-go all day? The easy-access front organization compartment helps keep you efficient and productive with its passport/wallet pocket, pen loops, business card pockets and handy removable interior key leash. And you can relax knowing that with lockable zippers and RFID-blocking lining to inhibit malicious RFID chip skimming everything stays safe and sound.
BRING YOUR SHADES
The fleece-lined, sunglasses pocket is designed for easy access and protection. The slip pocket in front is perfect for sliding in your phone to keep it within easy reach.
DON’T LOOK LIKE A HIKER
Only you will know that the sleek, hidden, zip side water bottle pocket holds your 17 oz S'well™/ 21 oz Hydro Flask™ bottles/ 20 oz Knack insulated bottle.
BE DISCREET
We’d love to tell you the location of the secret zip pocket for valuables, but then it wouldn’t be a secret.
See What Knackpackers Are Saying
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Love this backpack!
Philip Fairey • Series 2: Medium Expandable Knack Pack®Amazing backpack that completely changes your mind about what a backpack should be.
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Love that it fits under the seat!
Ron Okimoto • Series 2: Medium Expandable Knack Pack®Great backpack. Love the fact that it fits under seat. Perfect for minimalist travel.
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Best All In One Bag!
Ikie Light • Series 2: Medium Expandable Knack Pack®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
How to live a one bag life - travel
EXPAND YOUR HORIZONS
Our patented, hidden expansion compartment is the secret sauce that makes Knack the perfect One Bag™ Life backpack. Simply unzip and expand the compartment to get over 40% more carrying capacity. Unexpanded: 27 Liters. Expanded: 39 Liters.
PACK IT IN
Not sure about staying in town after your business trip ends? Pack our patent-pending, hidden suitcase compartment with a change of clothes and live spontaneously. Packing capacity: 12 Liters.
LOCK ON
Keep everything secure during your journeys with lockable zippers on the hidden suitcase and the main compartment. (Lock not included)
BE COMPATIBLE
Sometimes, your trips require a big piece of wheeled luggage. Don’t worry, it’s easy to bring your Knack Pack along too. Our hidden trolley sleeve lets you slip your Knack over the handle of almost all sizes of wheeled luggage.
Smell like a rose
Our custom-designed lining has a special antimicrobial treatment that helps to keep your Knack Pack fresh even when it’s filled with dirty or sweaty clothes.
KEEP DRY
While we don’t recommend swimming with your Knack Pack, our specially coated fabric and reverse coil zippers help keep your belongings dry in all types of weather.
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I have tried a few different bags and really happy with this one. Good size for every day use and travel. Very happy would recommend
I had been using Series 1 for a long time, and I was 100% satisfied with its convenience and functionality. This time, I decided to purchase Series 2, and it has fully met my expectations. It is incredibly lightweight and comes with many practical pockets, making it even more convenient to use.
Once again, I feel like I cannot go back to using any other backpack. My colleagues at work often tell me how stylish it looks, which makes me feel even better about using it.
One more thing I’d love to add: I was really impressed by the customer service, especially Rachel’s support. You can truly feel how much the company cares about its customers. Her responses were quick, and everything—from communication to delivery—was smooth and reassuring. I was genuinely touched by her kindness and professionalism. Thank you so much.
I recently traveled overseas, and was not happy with the backpack I carried. It did not fit well underseat, and was not comfortable running through airports. The Knack Pack is the fifth bag I have ordered while looking for a replacement!
I have to carry alot of medications with me when I travel, plus all the tech stuff and a change of clothes. I also have neck and back problems, so comfort is crucial. I loaded this bag up and it was actually comfortable to wear.
I am looking forward to my taking this bag on my next trip.
Love LOVE the Series 2 Medium Pack. It offers the perfect amount of storage and organization without being bulky. The expandable section is ideal for a short trip or giving you extra flexibility on a longer trip when paired with a carryon. It’s also suited for both business and casual travel. The size is just right for petite women - it’s comfortable and not too long. While I think the bag is wonderful, I was more impressed with the customer service, who went out of their way to communicate on the shipping of my order during an east coast winter storm. With a variety of travel bags out there, I am thrilled with my purchase and would highly recommend Knack to other frequent travelers.
I really like my Knack series two bag. I don’t think I’ll ever find a more organized, functional, travel onebag. I don’t want to get anything else! The customer service is phenomenal. My previous bags have had things break or fall apart (likely due to my own doing) and the team replaced my bags. I have nothing but great things to say about Knacks and the team, and I hope my review leads you to say yes to this bag! My coworkers have also said nothing but compliments for the bag.






