$235.00

Series 1: Medium Expandable Knack Pack®

Series 1: Medium Expandable Knack Pack® Backpack Knack Savile Gray
Series 1: Medium Expandable Knack Pack® Backpack Knack  Savile Gray
Side view, unexpanded for day use. 27 liters unexpanded. Savile Gray
Side view, expanded for travel use. 39 liters expanded. Savile Gray
Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes. Savile Gray
Computer pocket. Holds 15" laptops. Savile Gray
Main compartment is 27 Liters. Savile Gray
Organizer triangle pocket with RFID blocking fabric. Savile Gray
Trolley sleeve for longer trips. Savile Gray
Medium Knack Pack unexpanded and expanded on 5'10" model. Savile Gray
Series 1: Medium Expandable Knack Pack® Backpack Knack Stealth Black
Side view, unexpanded for day use. 27 liters unexpanded. Stealth Black
Side view, unexpanded for day use. 27 liters unexpanded. Stealth Black
Side view, expanded for travel use. 39 liters expanded. Stealth Black
Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes. Stealth Black
Computer pocket. Holds 15" laptops. Stealth Black
Main compartment is 27 Liters. Stealth Black
Organizer triangle pocket with RFID blocking fabric. Stealth Black
Trolley sleeve for longer trips. Stealth Black
Medium Knack Pack unexpanded and expanded on 5'10" model. Stealth Black
Series 1: Medium Expandable Knack Pack® Backpack Knack Indigo Blue
Side view, expanded for travel use. 39 liters expanded. Indigo Blue
Side view, unexpanded for day use. 27 liters unexpanded. Indigo Blue
Side view, expanded for travel use. 39 liters expanded. Indigo Blue
Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes. Indigo Blue
Computer pocket. Holds 15" laptops. Indigo Blue
Main compartment is 27 Liters. Indigo Blue
Organizer triangle pocket with RFID blocking fabric. Indigo Blue
Trolley sleeve for longer trips. Indigo Blue
Medium Knack Pack unexpanded and expanded on 5'10" model. Indigo Blue
Series 1: Medium Expandable Knack Pack® Backpack Knack Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack Savile Gray
Series 1: Medium Expandable Knack Pack® Backpack Knack  Savile Gray
Side view, unexpanded for day use. 27 liters unexpanded. Savile Gray
Side view, expanded for travel use. 39 liters expanded. Savile Gray
Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes. Savile Gray
Computer pocket. Holds 15" laptops. Savile Gray
Main compartment is 27 Liters. Savile Gray
Organizer triangle pocket with RFID blocking fabric. Savile Gray
Trolley sleeve for longer trips. Savile Gray
Medium Knack Pack unexpanded and expanded on 5'10" model. Savile Gray
Series 1: Medium Expandable Knack Pack® Backpack Knack Stealth Black
Side view, unexpanded for day use. 27 liters unexpanded. Stealth Black
Side view, unexpanded for day use. 27 liters unexpanded. Stealth Black
Side view, expanded for travel use. 39 liters expanded. Stealth Black
Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes. Stealth Black
Computer pocket. Holds 15" laptops. Stealth Black
Main compartment is 27 Liters. Stealth Black
Organizer triangle pocket with RFID blocking fabric. Stealth Black
Trolley sleeve for longer trips. Stealth Black
Medium Knack Pack unexpanded and expanded on 5'10" model. Stealth Black
Series 1: Medium Expandable Knack Pack® Backpack Knack Indigo Blue
Side view, expanded for travel use. 39 liters expanded. Indigo Blue
Side view, unexpanded for day use. 27 liters unexpanded. Indigo Blue
Side view, expanded for travel use. 39 liters expanded. Indigo Blue
Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes. Indigo Blue
Computer pocket. Holds 15" laptops. Indigo Blue
Main compartment is 27 Liters. Indigo Blue
Organizer triangle pocket with RFID blocking fabric. Indigo Blue
Trolley sleeve for longer trips. Indigo Blue
Medium Knack Pack unexpanded and expanded on 5'10" model. Indigo Blue
Series 1: Medium Expandable Knack Pack® Backpack Knack Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack  Heather Green
Series 1: Medium Expandable Knack Pack® Backpack Knack Heather Green

Series 1: Medium Expandable Knack Pack®

Regular price $235.00

or 4 interest-free payments of $59 with . Learn more

The bag that launched the iconic Knack style. Professional and modern, the Series 1 Medium Expandable laptop backpack combines great everyday function with great travel function in the same bag. Learn More


30 left in stock

 
Free shipping
&
Ships fast

or 4 interest-free payments of $59 with . Learn more

Laptop

Fits 15" Laptop

Overhead

All Jets

Under Seat

All Jets

Outfits

2-3

Unexpanded

27 Liters

Expanded

39 Liters

Not sure what size you need? See comparison and size chart

KEY FEATURES

Key Everyday Features

  • Easy-access, padded side-zip computer pocket for 15" laptops
  • Spacious main compartment with organization pockets, fleece-lined tablet pocket and removable key leash
  • Hidden, zip-away side water bottle pocket

Key Travel Features

  • Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes
  • Meets most popular carry-on requirements as well as fits under most seats
  • Packing compartment with easy-access suitcase lid
  • 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

CORPORATE SALES

For orders over 10 units or for Knack Products with custom corporate logos, please contact: corporate@knackbags.com.

Dimensions
Series 1
Small
Series 1
Medium
Series 2
Medium
Series 1
Large
Series 2
Large
Front
Small Knack Backpack Unexpanded 15 Liters
shop now
Medium Knack Backpack Unexpanded 27 Liters
shop now
Medium Knack Backpack Unexpanded 24 Liters
shop now
Large Knack Backpack Unexpanded 30 Liters
shop now
Large Knack Backpack Unexpanded 30 Liters
shop now
Side Unexpanded
Small Knack Backpack Expanded 26 Liters
15 Liters
Medium Knack Backpack Expanded 40 Liters
27 Liters
Medium Knack Backpack Expanded 40 Liters
24 Liters
Large Knack Backpack Expanded 46 Liters
30 Liters
Large Knack Backpack Expanded 46 Liters
30 Liters
Side Expanded
Small Knack Backpack Expanded 26 Liters
15 L + 12 L = 27 Liters
Medium Knack Backpack Expanded 40 Liters
27 L + 12 L = 39 Liters
Medium Knack Backpack Expanded 40 Liters
24 L + 11 L = 35 Liters
Large Knack Backpack Expanded 46 Liters
30 L + 16 L = 46 Liters
Large Knack Backpack Expanded 46 Liters
30 L + 16 L = 46 Liters
Additional Specs
Series 1
Small
Series 1
Medium
Series 2
Medium
Series 1
Large
Series 2
Large
Weight Icon
Weight
2 lb 4 oz Fabric:
2 lb 11 oz
Leather:
3 lb 9 oz

3 lb
3 lb 4 oz 3 lb 4 oz
Laptop Icon
Laptop
13" 15" 15" 17" 17"
Plane Overhead Icon
Overhead
All Jets All Jets All Jets All Jets All Jets
Plane Under Seat Icon
Under Seat
All Jets All Jets All Jets All Jets (when unexpanded) All Jets (when unexpanded)
Outfits Icon
Outfits
1-2 2-3 2-3 3-4 3-4
Trolley Sleeve
Trolley Sleeve
Yes Yes Yes Yes Yes
Water Bottle Pocket Icon
Water Bottle Pocket
17 oz S'well™/
18 oz
Hydro Flask™
17 oz S'well™/
24 oz
Hydro Flask™
17 oz S'well™/
24 oz
Hydro Flask™
25 oz S'well™/
24 oz
Hydro Flask™
25 oz S'well™/
24 oz
Hydro Flask™

Size Chart

Model: 5'3"

Knack Backpacks on 5 foot 3 inch model

Series 1: Small

Series 1: Medium

Series 2: Medium

Series 1: Large

Series 2: Large

Model: 5'10"

Knack Backpacks on 5 foot 10 inch model

Series 1: Small

Series 1: Medium

Series 2: Medium

Series 1: Large

Series 2: Large

Model: 6'3"

Knack Backpacks on 6 foot 3 inch model

Series 1: Small

Series 1: Medium

Series 2: Medium

Series 1: Large

Series 2: Large

MAXIMIZE SPACE WITH KNACK ACCESSORIES

CUBE BUNDLE

$45

LARGE CUBE

$25

INSULATED BOTTLE

$25

HOW TO LIVE A ONE BAG LIFE - EVERY DAY

STAY CONNECTED

Use the Knack Pack’s padded side computer pocket to always keep your laptop with you. The pocket fits 15” laptops (measured diagonally) and its suspended bottom helps keep your computer safely off the floor whenever you put your bag down.

ORGANIZE THOSE CORDS

The easy access charger and battery pocket helps keep all those cords, chargers, adapters, batteries and USB sticks that you can’t live without in one neat place instead of rolling around in the bottom of your bag.

BRING YOUR SHADES

The fleece-lined, soft case sunglasses pocket is designed for easy access and protection. And there’s a bonus pocket behind it for other items you need at a minute’s notice.

HOLD THE CARDS

Feel free to throw in a bunch of business cards - there’s plenty of room in the organizer panel. Also, rest assured that your passport and wallet are safe. Our RFID blocking fabric protects your RFID chip cards from unwanted skimming.

STAY ON KEY

Our removable, easy-access key leash makes it a breeze to bring your keys with you everywhere.

CARRY IT ALL

The Knack Pack’s main compartment has two generously-sized, soft monofilament mesh, zip organization pockets. Our special mesh makes it easy to always see all the things you stuff into the pockets. If that’s not enough, there’s a protective fleece-lined pocket to keep your tablet safe and sound.

DON’T LOOK LIKE A HIKER

Only you will know that the sleek, hidden, zip-away side water bottle pocket holds your 17 oz S'well™/ 24 oz Hydro Flask™ bottles/ 20 oz Knack Insulated bottle.

HOW TO LIVE A ONE BAG LIFE - TRAVEL

EXPAND YOUR HORIZONS

Our patent-pending, 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.

STAY FLEXIBLE

Our adjustable sternum strap does a great job of distributing weight when you’ve really packed your Knack. But if you prefer a cleaner look, the strap unhooks for easy removal.

BE PREPARED

It should never happen, but if that flight attendant makes you check your backpack, don’t worry about your straps getting caught on the luggage carousel. Simply unclip your straps and stow them out of the way in the back panel pocket.

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.

SMELL LIKE A ROSE

Our custom-designed lining brightens up your day and ensures things never get lost in your bag. And our special antimicrobial treatment helps to keep everything fresh even when you’ve packed dirty or sweaty clothes.

LOOK SHARP

Inspired by tailored clothing fabrics, Knack’s custom-designed, two-tone fabric is both lightweight and durable.

PRODUCT DETAILS

Pack Dimensions (LxWxD):

Unexpanded: 19" x 12" x 4.5"

Expanded: 19" x 12" x 9.5"

Volume:

Unexpanded: 27 Liters

Expanded: 39 Liters

Weight: 2 pounds 11 ounces (Just a bit more than 2 Grande Coffees)

Laptop Pocket Dimensions (LxWxD):

Pocket Opening: 15"

Dimensions: 15.5" x 11" x 2" (fits 15” laptop)

Fabric: Suiting-inspired, custom-developed, water-resistant 1200 denier two tone polyester body fabric. Tested to carry loads up to 40 pounds.


Lining Fabric: Custom, stain-resistant, antimicrobial 150D Nylon fabric lining


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: Molded, comfort-cool foam back panel

Everyday Features:

  • Spacious main compartment with lockable zippers
  • Protective, fleece-lined internal tablet pocket
  • 2 interior, see-through, soft monofilament mesh zip organization pockets
  • Handy removable interior key leash
  • Built-in, fleece-lined, protective soft case sunglasses pocket
  • Easy-access, front triangle pocket with RFID-blocking lining, business card pockets and passport pocket
  • Exterior charger and battery pocket with pen loops
  • Large zip-away side water bottle pocket holds 17 oz S'well™/ 24 oz Hydro Flask™ bottles/ 20 oz Knack Insulated bottle.
  • Padded, side computer pocket fits up to 15" laptops (measured diagonally)
  • Comfort-foam top carry handle
  • Ergonomically-designed comfort foam shoulder straps with easy-release clips
  • Elastic keepers for shoulder strap
  • Adjustable, removable sternum strap helps make heavier loads more comfortable

Travel Features:

  • Separate, patent-pending, expandable 12 cubic liter packing compartment with easy-access suitcase lid opening
  • Hidden trolley sleeve slips over wheeled luggage handles
  • Lockable zippers on travel compartment
  • Internal packing compression system
  • Large, see-through, soft monofilament mesh zip packing pocket
  • Rain flap covering expansion zipper
  • Tuck-away back storage pocket for shoulder straps

PRODUCT REVIEWS

Customer Reviews

Based on 205 reviews
85%
(174)
12%
(24)
2%
(4)
1%
(2)
0%
(1)
T
TheSharpTraveler
Easy to order and received the product quickly.

I used my Knackbag on a trip through Asia. It was the perfect size to carry additional items that could not fit in my carry-on. I highly recommend this product!

S
Sharla
Excellent

Exactly what I was looking for. Not too large but still fits everything needed. Excellent design.

J
Jessica Spinelli

Bought for my husband for Christmas and he loves!! He has used on a few work trip as his only bag. It fits so much!

J
Jo√£o Vissoci

The best backpack I have ever had, awesome!

M
Mark Wainland
was a fast checkout

Many pockets and versatile backpack

Customer Reviews

Based on 205 reviews
85%
(174)
12%
(24)
2%
(4)
1%
(2)
0%
(1)
T
TheSharpTraveler
Easy to order and received the product quickly.

I used my Knackbag on a trip through Asia. It was the perfect size to carry additional items that could not fit in my carry-on. I highly recommend this product!

S
Sharla
Excellent

Exactly what I was looking for. Not too large but still fits everything needed. Excellent design.

J
Jessica Spinelli

Bought for my husband for Christmas and he loves!! He has used on a few work trip as his only bag. It fits so much!

J
Jo√£o Vissoci

The best backpack I have ever had, awesome!

M
Mark Wainland
was a fast checkout

Many pockets and versatile backpack

The bag that launched the iconic Knack style. Professional and modern, the Series 1 Medium Expandable laptop backpack combines great everyday function with great travel function in the same bag. Learn More