1 Large Cube & 2 Medium Cubes (fits in Large Knack)
Maximize space in the Large Knack Pack
4 Medium Cubes (fits in Large Knack)
Maximize space in the Large Knack Pack
2 Large Cubes (fits in Medium Knack)
Maximize space in the Medium Knack Pack
3 Medium Cubes (fits in Medium Knack)
Maximize space in the Medium Knack Pack
1 Medium Cube & 1 Large Cube (fits in Small Knack)
Maximize space in the Small Knack Pack
Knack packing cube compresses and expands by 60% to maximize space
Knack bags Strong 70 denier ripstop nylon fabric
Knack bags sturdy nylon webbing carry handle
Knack bags Easy grip cord pullers
1 Large Cube & 2 Medium Cubes (fits in Large Knack)
Maximize space in the Large Knack Pack
4 Medium Cubes (fits in Large Knack)
Maximize space in the Large Knack Pack
2 Large Cubes (fits in Medium Knack)
Maximize space in the Medium Knack Pack
3 Medium Cubes (fits in Medium Knack)
Maximize space in the Medium Knack Pack
1 Medium Cube & 1 Large Cube (fits in Small Knack)
Maximize space in the Small Knack Pack
Knack packing cube compresses and expands by 60% to maximize space
Knack bags Strong 70 denier ripstop nylon fabric
Knack bags sturdy nylon webbing carry handle
Knack bags Easy grip cord pullers

Cube Bundles

Regular price $55.00

We’ve pulled together the most popular combinations of our Large and Medium Expandable Packing Cubes to provide you with several of the most efficient ways to pack each size Knack Pack. Not only are do these bundles make your traveling easier, they’re all at a special price! Learn More


36 left in stock

 
Ships fast

Key Features

  • Perfect for toiletries, electronic cords and accessories or socks/underwear/tees
  • Zip-around expansion/compression feature changes Cube size by 60%
  • Designed specifically to fit in Knack Packs

Key Technical Features

  • Lightweight, durable body fabric with see-through mesh panels
  • Strong nylon webbing carry handle
  • YKK™ reverse coil zippers

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

Customer Reviews

Based on 13 reviews
85%
(11)
8%
(1)
0%
(0)
8%
(1)
0%
(0)
H
H.S.
Packing cubes are awesome!

The Knack packing cubes make it easy to get everything I need into my Kanck bag.

J
J.F.
Simply Great!

I have many "cube" type cases from other manufactures. The ones you make are better, because they custom fit your backpacks! They are much deeper than I thought they would be (so they hold more) but the compression zipper makes them thin enough to take up very little space. But the reason I purchased them is they fit perfect! Thanks for this great accessory to your unique perfect backpack (or in my case it's a briefcase with room for a change of clothes).

M
M.M.

Did not expect large size to be small

m
m.w.

👍🏽

P
P.W.

Very happy

T
T.S.
Great packing cubes

Well made and nice looking.

T
T.B.
Very well built packing cubes

I bought my large knack bag about a month before ordering my cubes. I was able to travel with it using packing cubes that I owned before but they were generic Amazon ones. I enjoyed using the bag but decided I needed the full experience and I am very pleased. The quality of the cubes is outstanding. They compress down very well and still leave you room in your bag for other items. They are not as large as I would have hoped however they will do the job of keeping your smaller items together and orderly. I'm a tall guy 6'6 so my clothes tend to take up more space. I'm probably not going to be putting my jeans into any of these bags but for socks and t-shirts they will keep them nice and small so that I can fit larger items just in the Knack bag itself. Plus once you get to your destination you can just take the cubes out and compress your Knack bag down to be your EDC bag and that is what I love about Knack. You can use the same bag in so many different ways. If you are thinking about getting a Knack bag or the cubes I would recommend them. They have been a pleasure to use and have made traveling less stressful on every trip I have used them on.

T
T.M.
Quality product seldom seen.

Light weight but very sturdy compacting that makes packing a breeze. Have had cheap ones in the past but these top them all in ease of use and organization.

D
D.
almost perfect

Very nice backpack that I can use for the office and travel. I don’t use the chest or hip straps it would be nice if these can be removed. Side handle and luggage pass thru would be welcome additions as well. I thought large may too big but it was perfect for a taller frame.

J
J.O.
You must order the Knack Cubes. You must.

These Cubes are lighter than air and as strong as can be. I just packed them with clothing and expanded my large knack and inserted all three cubes. Don’t waste time thinking you can repurpose old cubes. Just get these cubes. They are perfect.

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

Size Materials Features
Large Cube Dimensions (LxHxD):

Expanded: 12"x8"x5"

Unexpanded: 12"x8"x3"

Large Cube Volume:

Expanded: 8 Liters

Unexpanded: 5 Liters

Weight: 3.5 ounces

Medium Cube Dimensions (LxHxD):

Expanded: 12"x5.5"x5"

Unexpanded: 12"x5.5"x3"

Medium Cube Volume:

Expanded: 5 Liters

Unexpanded: 3 Liters

Weight: 2.9 ounces

Bring Back More

Our Cubes’ unique zip expansion and compression system changes useable volume by over 60% so that they fit the way you pack and not vice-versa.

Keep Things Safe

Good looking and practical, our Cubes are made from a strong but featherweight 70 denier ripstop nylon fabric.

See What’s There

Forgot what you packed? Not with our Cube’s see-through, soft nylon monofilament mesh top panels.

Grab Hold

We’ve paired an easy-to-grab puller cord with a strong YKK™ zipper to provide you with worry-free operation.

Customer Reviews

Based on 13 reviews
85%
(11)
8%
(1)
0%
(0)
8%
(1)
0%
(0)
H
H.S.
Packing cubes are awesome!

The Knack packing cubes make it easy to get everything I need into my Kanck bag.

J
J.F.
Simply Great!

I have many "cube" type cases from other manufactures. The ones you make are better, because they custom fit your backpacks! They are much deeper than I thought they would be (so they hold more) but the compression zipper makes them thin enough to take up very little space. But the reason I purchased them is they fit perfect! Thanks for this great accessory to your unique perfect backpack (or in my case it's a briefcase with room for a change of clothes).

M
M.M.

Did not expect large size to be small

m
m.w.

👍🏽

P
P.W.

Very happy

T
T.S.
Great packing cubes

Well made and nice looking.

T
T.B.
Very well built packing cubes

I bought my large knack bag about a month before ordering my cubes. I was able to travel with it using packing cubes that I owned before but they were generic Amazon ones. I enjoyed using the bag but decided I needed the full experience and I am very pleased. The quality of the cubes is outstanding. They compress down very well and still leave you room in your bag for other items. They are not as large as I would have hoped however they will do the job of keeping your smaller items together and orderly. I'm a tall guy 6'6 so my clothes tend to take up more space. I'm probably not going to be putting my jeans into any of these bags but for socks and t-shirts they will keep them nice and small so that I can fit larger items just in the Knack bag itself. Plus once you get to your destination you can just take the cubes out and compress your Knack bag down to be your EDC bag and that is what I love about Knack. You can use the same bag in so many different ways. If you are thinking about getting a Knack bag or the cubes I would recommend them. They have been a pleasure to use and have made traveling less stressful on every trip I have used them on.

T
T.M.
Quality product seldom seen.

Light weight but very sturdy compacting that makes packing a breeze. Have had cheap ones in the past but these top them all in ease of use and organization.

D
D.
almost perfect

Very nice backpack that I can use for the office and travel. I don’t use the chest or hip straps it would be nice if these can be removed. Side handle and luggage pass thru would be welcome additions as well. I thought large may too big but it was perfect for a taller frame.

J
J.O.
You must order the Knack Cubes. You must.

These Cubes are lighter than air and as strong as can be. I just packed them with clothing and expanded my large knack and inserted all three cubes. Don’t waste time thinking you can repurpose old cubes. Just get these cubes. They are perfect.