Knack large backpack in grey colour. Unexpanded for day use
Knack large backpack in grey colour. Simple design with organization pockets
Knack large backpack in grey colour. Unexpanded for day use
Knack large backpack in grey colour. Simple design with organization pockets
Knack large backpack in grey colour. Separate, patent-pending, expandable packing compartment holds 3 to 4 changes of clothes
Knack large backpack in grey colour. Built-in, fleece-lined, protective soft case sunglasses pocket
Knack large backpack in grey colour. Hidden, zip-away side water bottle pocket
Knack large backpack in grey colour. Spacious main compartment with organization pockets, fleece-lined tablet pocket and key leash
Knack large backpack in grey colour. Exterior charger and battery pocket
Knack large backpack in grey colour. Easy-access front triangle pocket with business card slots and pen loops
Knack large backpack in grey colour. Tuck-away back zip storage pocket for shoulder straps
Padded, side computer pocket fits up to 17" laptops (measured diagonally)
2 interior, see-through, soft monofilament mesh zip organization pockets
Ergonomically-designed comfort foam shoulder straps with easy-release clips
Adjustable, tuck-away hip straps to help carry heavy load
Unexpanded and expanded view of large Knack (Model height: 5' 11").
Knack large backpack in grey colour. Unexpanded for day use
Knack large backpack in grey colour. Simple design with organization pockets
Knack large backpack in grey colour. Unexpanded for day use
Knack large backpack in grey colour. Simple design with organization pockets
Knack large backpack in grey colour. Separate, patent-pending, expandable packing compartment holds 3 to 4 changes of clothes
Knack large backpack in grey colour. Built-in, fleece-lined, protective soft case sunglasses pocket
Knack large backpack in grey colour. Hidden, zip-away side water bottle pocket
Knack large backpack in grey colour. Spacious main compartment with organization pockets, fleece-lined tablet pocket and key leash
Knack large backpack in grey colour. Exterior charger and battery pocket
Knack large backpack in grey colour. Easy-access front triangle pocket with business card slots and pen loops
Knack large backpack in grey colour. Tuck-away back zip storage pocket for shoulder straps
Padded, side computer pocket fits up to 17" laptops (measured diagonally)
2 interior, see-through, soft monofilament mesh zip organization pockets
Ergonomically-designed comfort foam shoulder straps with easy-release clips
Adjustable, tuck-away hip straps to help carry heavy load
Unexpanded and expanded view of large Knack (Model height: 5' 11").

Large Expandable Knack Pack® (Factory Seconds)

Regular price $195 Sale price $120

We created the spacious and surprisingly light Large Expandable Knack Pack for people who like to carry a lot with them every day. Learn More


0 left in stock

 
This product is sold "as is" and is not eligible for returns or exchanges.

Laptop

Fits 17" Laptop

Overhead

All Jets

Under Seat

Doesn't Fit
(When Expanded)

Outfits

3-4

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

Key Everyday Features

  • Easy-access, padded side-zip computer pocket for 17" laptops
  • Spacious main compartment with organization pockets, fleece-lined tablet pocket and key leash
  • Hidden, zip-away side water bottle pocket

Key Travel Features

  • Separate, patent-pending, expandable packing compartment holds 3 to 4 changes of clothes 
  • Meets most global airlines' carry-on dimensions even when expanded
  • Packing compartment with easy-access suitcase lid 

Key Technical Features

  • Custom-developed, durable, water-resistant body fabric
  • Molded, comfort-cool foam back panel 
  • YKK™ water-resistant zipper with custom-designed pullers

For orders over 10 or logo'd Knack products, please contact our Corporate Sales department: corporate@knackbags.com

Packing Dimensions
Medium Large
Unexpanded
Medium Knack Backpack Unexpanded 17 Liters
17 Liters
Large Knack Backpack Unexpanded 22 Liters
22 Liters
Expanded
Medium Knack Backpack Expanded 31 Liters
17 L + 14 L = 31 Liters
Large Knack Backpack Expanded 37 Liters
22 L + 15 L = 37 Liters
Additional Specs
Medium Large
Weight Icon
Weight
2 lb 11 oz 3 lb 4 oz
Laptop Icon
Laptop
15" 17"
Plane Overhead Icon
Overhead
All Jets All Jets
Plane Under Seat Icon
Under Seat
All Jets Doesn't fit (when expanded)
Outfits Icon
Outfits
2-3 3-4
Water Bottle Pocket Icon
Water Bottle Pocket
17 oz S'well™ 25 oz S'well™
Tuck-Away Hip Strap Icon
Tuck-Away Hip Strap
No Yes

Size Chart

Model: 5'5"

Knack Backpacks on 5 foot 5 inch model

Medium

Large

Model: 5'11"

Knack Backpacks on 5 foot 11 inch model

Medium

Large

Model: 6'3"

Knack Backpacks on 6 foot 3 inch model

Medium

Large

Living a One Bag Life

Product Details

Pack Dimensions (LxWxD):

Expanded: 21.5"x14"x9.5"

Unexpanded: 21.5"x14"x4.5"

Volume:

Expanded: 37 Liters

Unexpanded: 22 Liters

Weight: 3 pounds 4 ounces (Just a bit more than 3 Grande Coffees)

Laptop Pocket Dimensions (LxWxD):

Dimensions: 16.5"x12"x2"

Pocket Opening: 16"

Tested to carry loads up to 40 pounds

Fabric: Suiting-inspired, custom-developed, water-resistant 1200 denier two tone polyester body fabric


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


Zippers:

Water-resistant YKK™ reverse coil zippers


Zipper Pullers:

Strong, custom-designed cast zinc zipper pullers with comfortable PU overmold and chip-resistant PVD coating


Hardware:

Duraflex™ buckles and sliders


Back Panel Material: Molded, comfort-cool foam back panel

Everyday Features:
  • Spacious main compartment
  • Protective, fleece-lined internal tablet pocket
  • 2 interior, see-through, soft monofilament mesh zip organization pockets
  • Handy interior key leash
  • Built-in, fleece-lined, protective soft case sunglasses pocket
  • Easy-access front triangle pocket with business card slots and pen loops
  • Exterior charger and battery pocket
  • Large zip-away side water bottle pocket holds 25 ounce S'well™/24 ounce Hydro Flask™ bottles
  • Padded, side computer pocket fits up to 17" laptops (measured diagonally)

  • Comfort-foam top carry handle
  • Ergonomically-designed comfort foam shoulder straps with easy-release clips
  • Adjustable sternum strap helps make heavier loads more comfortable
Travel Features:
  • Separate, patent-pending, expandable 15 cubic liter packing compartment with easy-access suitcase lid opening
  • Internal packing compression strap system
  • Large, see-through, soft monofilament mesh zip packing pocket
  • Rain flap covering expansion zipper
  • Tuck-away back zip storage pocket for shoulder straps
  • Adjustable, tuck-away hip straps to help carry heavy loads

How to Live a One Bag Life

GET ORGANIZED

Don’t worry about your backpack being a black hole. We designed pockets, sleeves and clips that help keep your everyday items organized and in place no matter where you go.

STAY FLEXIBLE

Not sure about staying in town after your business trip ends? Unzip, expand and pack our hidden suitcase compartment with a change of clothes and be spontaneous.

BE READY FOR ANYTHING

Inspired by tailored clothing fabrics, our custom-designed, two-toned, water-resistant fabric is as much at home at a meeting with your boss as it is at drinks with your friends.

KEEP CONNECTED

Feel free to carry your laptop day and night. We designed our padded computer pocket to be easily accessible and close to your back for carrying comfort.

WEAR A BACKPACK BUT DON’T LOOK LIKE A HIKER

Our zip-away side water bottle pocket keeps your drink handy and your bag neat.

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 unzip the back pocket, unclip your straps and stow them out of the way.

HAVE FUN

Our custom-designed lining brightens up your day and ensures things never get lost in your bag.

Customer Reviews

Based on 3 reviews
67%
(2)
33%
(1)
0%
(0)
0%
(0)
0%
(0)
D
D.N.
Awesome!

My knack bag is perfect, I carry everything I need in it everyday. First time I’ve taken a trip without checking luggage! I took a 5 day trip and only took my knack bag and still had room for more stuff! It’s perfect!

J
J.C.
Really Great Expandable Bag

I travel quite a bit, and so am always in the hunt for tools that will lesson my load. This bag is great due to the expansion and compartments. I was able to make it through 3 weeks in Europe with this bags (and some packing cubes) as well as use it for my work. Good bag, liked being able to compress the bag when going to offices, but having the space for a single bag in the overhead. Thanks!

It seems well constructed as well. I carry a lot of weight, and it didn't seem any worse for wear. Looking forward to see if it actually holds up.

T
T.M.
My new day pack & travel duffle.

I've used it for a couple of week long trips now, and it is wonderful. I love that the compartment for clothing and essentials is separated from where I keep my business essentials and tablet, so I can get to what I need without tossing boxers and socks everywhere. I love that it's expandable! When I need it to hold all of my clothes, it can do that, but when I just need it to be a day pack and hold workout clothes, it accomplishes that too. It's a great size. It looks good. It feels good to carry. The organization feel more intuitive and useful than other packs I've used. I really enjoy using it, and I'm super glad that when I pick up this bag to go in the morning, I'm not thinking about how I"m going to have to fight it in some way.

Couple criticisms:
- wish the separation between the laptop compartment against my back and the clothing compartment was rigid. Shoes or rigid toiletry bags made me worry that I was putting too much pressure on my laptop.
- I still haven't found the best way to deal with extra shoes larger than flip flops. The bag can handle it, but I either worry about my laptop or give up space in the main compartment. That's been a complaint with every bag like this I've gotten though. This one has been the best so far!

Customer Reviews

Based on 3 reviews
67%
(2)
33%
(1)
0%
(0)
0%
(0)
0%
(0)
D
D.N.
Awesome!

My knack bag is perfect, I carry everything I need in it everyday. First time I’ve taken a trip without checking luggage! I took a 5 day trip and only took my knack bag and still had room for more stuff! It’s perfect!

J
J.C.
Really Great Expandable Bag

I travel quite a bit, and so am always in the hunt for tools that will lesson my load. This bag is great due to the expansion and compartments. I was able to make it through 3 weeks in Europe with this bags (and some packing cubes) as well as use it for my work. Good bag, liked being able to compress the bag when going to offices, but having the space for a single bag in the overhead. Thanks!

It seems well constructed as well. I carry a lot of weight, and it didn't seem any worse for wear. Looking forward to see if it actually holds up.

T
T.M.
My new day pack & travel duffle.

I've used it for a couple of week long trips now, and it is wonderful. I love that the compartment for clothing and essentials is separated from where I keep my business essentials and tablet, so I can get to what I need without tossing boxers and socks everywhere. I love that it's expandable! When I need it to hold all of my clothes, it can do that, but when I just need it to be a day pack and hold workout clothes, it accomplishes that too. It's a great size. It looks good. It feels good to carry. The organization feel more intuitive and useful than other packs I've used. I really enjoy using it, and I'm super glad that when I pick up this bag to go in the morning, I'm not thinking about how I"m going to have to fight it in some way.

Couple criticisms:
- wish the separation between the laptop compartment against my back and the clothing compartment was rigid. Shoes or rigid toiletry bags made me worry that I was putting too much pressure on my laptop.
- I still haven't found the best way to deal with extra shoes larger than flip flops. The bag can handle it, but I either worry about my laptop or give up space in the main compartment. That's been a complaint with every bag like this I've gotten though. This one has been the best so far!