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®

Regular price $195

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


174 left in stock

 
Free shipping
&
Ships fast
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.

Product Details & Specifications

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Laptop
Fits 15" Laptop
Laptop
Fits 15" Laptop
Laptop
Fits 15" Laptop
Laptop
Fits 15" Laptop

Customer Reviews

Based on 50 reviews
88%
(44)
8%
(4)
4%
(2)
0%
(0)
0%
(0)
J
J.O.
The bag you did not know you could not live without. Clearly the  of Bags

Short version: Order a KnackPack now and thank me later. 
Long version: I studied backpacks for six weeks before buying one. I am an avid RedOxx bag owner. I own six bags of theirs. I could not get over their backpack looking more a hiker than a minister and missionary.

I found Knack through reviews. I bought the large. I could not believe the quality or the spaciousness of the bag. 

I put it through a 12 day trip only carrying my tech. I loved it. I did not unzip the expansion section. It was perfect for plane and car and coffee shop travel. I came home; I did two, two-night trips with my suit packed. The suit did not wrinkle. It fit the overhead bin even with the expansion pack unzipped on a 900.

Great customer service by Rachel. I had two minor cosmetic concerns. She responded with grace and exceeded expectations. 

I wholeheartedly endorse this bag.

W
W.T.
Well designed!

This Knack Pack is well put together. Everything has a place and kept very neat. At the airport two people asked me about it. I saw one other Knack Pack and it looked good .

T
T.A.
Great bag

I thought the large size would be too big but it's actually very comfortable and fits everything

F
F.
Almost perfect. Negligible downsides.

Expectations are the same as reality! The pockets and organization do their job well. It IS VERY sleek when in compressed form. The large one looks very good on a 5' 11" person, even on someone a bit shorter than that. The material is great, the look is great, the top handle is great, the capacity is great.

The triangular front pocket is a bit awkward, but still functional. The sternum strap cannot be removed, and you can end up with a lot of dangling stuff.

R
R.H.
This bag is fantastic!

I am a flight nurse in the Air Force and take frequent overnight trips... prior to this bag, I had two choices: 1. mix clothing and equipment in one large compartment, or take two small bags; however, thanks to the Large Expandable Knack Pack I can pack a change of clothes... a spare flight suit... and all the paperwork/equipment I need to complete my mission. This is the best "flight bag" I have used!

J
J.S.
Very happy with this bag overall as a daily carry and travel bag.

I have been extremely happy with the purchase of this bag. Love how the main and front triangle compartments fold open, giving a good visual of the contents without spilling anything. It has the feel of handing you it's contents which combined with the smooth zippers that can be used with one hand, I can get what I need blindfolded. The amount of space is perfect for my daily carry where there is just enough space for an extra sweater or jacket. The expansion gives exactly enough space for my 2 packing cubes and toiletries. I do wish the bottom compartment was big enough for a pair of shoes. I don't want to put my laptop cable there as that is a 3rd zipper then to get my laptop setup but it's too small for anything beyond a pair of flip flops.

Comfortable but the back panel gets sweaty on my bike rides to the office. The off center hip belt is also kind of annoying and just barely tightens enough for my 30" waist. Also the chest strap needs an elastic to hold the excess strap so it's not bouncing around while walking. Shoulder straps are great. The clips that hold them on are really nice and can be used to hold excess strap.

Overall I really like the look. The grey was a bit darker than expected but I like even more than the pictures. It just looks good sitting there in my room. It would be nice if it stood up on it's own but it's solid enough to lean against things really well.

D
D.S.
Excellent hybrid travel bag

Absolutely love my Knack Pack (large). I wanted a one-bag-travel bag that can compress and used once I get to my site, and it has exceeded my expectations. The bag is made of high-quality materials, the pockets all make sense, and it has plenty of room for my work gear AND some clothes. Their packing cubes (I got two medium and one large) are also excellent and make packing/unpacking a breeze. Great bag, thoroughly enjoying it.

J
J.T.
Great bag few improvements needed

This is one of the best backpacks I ever owned. The size of it is great and space is amazing. Few recommended things to perfect it:

- the zippers get stuck sometimes
- the back memory foam is great but gives you a sweaty back after a while of carrying.
- the front pocket with 2 zippers could have better organization as the current form limits what could be placed.

I know knack will get it fixed and my only regret is that I will have to purchase and pay for the newer version at some point.

C
C.
Does everything you need it to do.

Amazing bag. Easy accessibility to everything in the bag. The expansion is great couldnt really ask for more if u just want one bag in your life

A
A.
From Europe

Received my bag through Stackry, took me a bit of effort :). What I like:
- overall quality
- look of the bag, not too flashy
- laptop compartment
- small compartment on the upside of the back end
- overall placement of the compartments

What could be better:
- i really miss one "secret" compartment on the inner side of the bag (against my back) to hold wallet on phone securely
- the triangle section compartment - cant really find any use for it?

Customer Reviews

Based on 50 reviews
88%
(44)
8%
(4)
4%
(2)
0%
(0)
0%
(0)
J
J.O.
The bag you did not know you could not live without. Clearly the  of Bags

Short version: Order a KnackPack now and thank me later. 
Long version: I studied backpacks for six weeks before buying one. I am an avid RedOxx bag owner. I own six bags of theirs. I could not get over their backpack looking more a hiker than a minister and missionary.

I found Knack through reviews. I bought the large. I could not believe the quality or the spaciousness of the bag. 

I put it through a 12 day trip only carrying my tech. I loved it. I did not unzip the expansion section. It was perfect for plane and car and coffee shop travel. I came home; I did two, two-night trips with my suit packed. The suit did not wrinkle. It fit the overhead bin even with the expansion pack unzipped on a 900.

Great customer service by Rachel. I had two minor cosmetic concerns. She responded with grace and exceeded expectations. 

I wholeheartedly endorse this bag.

W
W.T.
Well designed!

This Knack Pack is well put together. Everything has a place and kept very neat. At the airport two people asked me about it. I saw one other Knack Pack and it looked good .

T
T.A.
Great bag

I thought the large size would be too big but it's actually very comfortable and fits everything

F
F.
Almost perfect. Negligible downsides.

Expectations are the same as reality! The pockets and organization do their job well. It IS VERY sleek when in compressed form. The large one looks very good on a 5' 11" person, even on someone a bit shorter than that. The material is great, the look is great, the top handle is great, the capacity is great.

The triangular front pocket is a bit awkward, but still functional. The sternum strap cannot be removed, and you can end up with a lot of dangling stuff.

R
R.H.
This bag is fantastic!

I am a flight nurse in the Air Force and take frequent overnight trips... prior to this bag, I had two choices: 1. mix clothing and equipment in one large compartment, or take two small bags; however, thanks to the Large Expandable Knack Pack I can pack a change of clothes... a spare flight suit... and all the paperwork/equipment I need to complete my mission. This is the best "flight bag" I have used!

J
J.S.
Very happy with this bag overall as a daily carry and travel bag.

I have been extremely happy with the purchase of this bag. Love how the main and front triangle compartments fold open, giving a good visual of the contents without spilling anything. It has the feel of handing you it's contents which combined with the smooth zippers that can be used with one hand, I can get what I need blindfolded. The amount of space is perfect for my daily carry where there is just enough space for an extra sweater or jacket. The expansion gives exactly enough space for my 2 packing cubes and toiletries. I do wish the bottom compartment was big enough for a pair of shoes. I don't want to put my laptop cable there as that is a 3rd zipper then to get my laptop setup but it's too small for anything beyond a pair of flip flops.

Comfortable but the back panel gets sweaty on my bike rides to the office. The off center hip belt is also kind of annoying and just barely tightens enough for my 30" waist. Also the chest strap needs an elastic to hold the excess strap so it's not bouncing around while walking. Shoulder straps are great. The clips that hold them on are really nice and can be used to hold excess strap.

Overall I really like the look. The grey was a bit darker than expected but I like even more than the pictures. It just looks good sitting there in my room. It would be nice if it stood up on it's own but it's solid enough to lean against things really well.

D
D.S.
Excellent hybrid travel bag

Absolutely love my Knack Pack (large). I wanted a one-bag-travel bag that can compress and used once I get to my site, and it has exceeded my expectations. The bag is made of high-quality materials, the pockets all make sense, and it has plenty of room for my work gear AND some clothes. Their packing cubes (I got two medium and one large) are also excellent and make packing/unpacking a breeze. Great bag, thoroughly enjoying it.

J
J.T.
Great bag few improvements needed

This is one of the best backpacks I ever owned. The size of it is great and space is amazing. Few recommended things to perfect it:

- the zippers get stuck sometimes
- the back memory foam is great but gives you a sweaty back after a while of carrying.
- the front pocket with 2 zippers could have better organization as the current form limits what could be placed.

I know knack will get it fixed and my only regret is that I will have to purchase and pay for the newer version at some point.

C
C.
Does everything you need it to do.

Amazing bag. Easy accessibility to everything in the bag. The expansion is great couldnt really ask for more if u just want one bag in your life

A
A.
From Europe

Received my bag through Stackry, took me a bit of effort :). What I like:
- overall quality
- look of the bag, not too flashy
- laptop compartment
- small compartment on the upside of the back end
- overall placement of the compartments

What could be better:
- i really miss one "secret" compartment on the inner side of the bag (against my back) to hold wallet on phone securely
- the triangle section compartment - cant really find any use for it?