Expandable Product Assortment

Series 2: Expandable Sling Bags

Keep all of your essentials, including your tablet and other tech, within hand’s reach. Like its Backpack siblings, our Sling expands for those unpredictable days when you may need extra room. This unique Sling Bag is 6 liters unexpanded and 10 liters when expanded.

Keep all of your essentials, including your tablet... read more >

Series 2: Medium Expandable Knack Pack

The minimal look. The comfort in your hand. The surprising lightness on your back. Series 2 is a delight for your senses and a joy to carry. Like all Knack products, this new collection offers intelligent organization for your everyday things plus our patent-pending, hidden suitcase compartment function. Compare Sizes

The minimal look. The comfort in your hand. The surprising... read more >

Series 2: Convertible Duffel

This new Convertible Duffel will give you the ability to switch from duffel to everyday laptop backpack during your daily journey. Used as a duffel, a simple zip increases its capacity by over 40%, from 28 liters to 40 liters, so it has room for up to a week of clothes. Carried as a backpack, its padded 15” laptop pocket, protective fleece-lined tablet pocket, and tons of internal organization pockets make this a great everyday work bag.

This new Convertible Duffel will give you the ability to... read more >

Series 1: Medium Expandable Knack Pack

Our best selling medium backpacks are do-it all bags. Unexpanded, they are great for everyday, around-town carrying. Ready to travel? Expand the patent-pending, hidden suitcase compartment and pack what you need for a couple of days on the road. Compare Sizes

Our best selling medium backpacks are do-it all bags. Unexpanded... read more >

Series 1: Large Expandable Knack Pack

Go ahead, throw in whatever you want. If you’re a “just-in-case” type of person, our large backpacks are the perfect solution. With a spacious everyday compartment and a separate roomy, expandable packing compartment, large Knack Packs have the capacity for whatever you want to bring. And, just in case you want to bring them on a plane, we designed them to fit in the overhead compartment. Compare Sizes

Go ahead, throw in whatever you want. If you’re a “just-in-case”... read more >

Series 2: Large Expandable Knack Pack

The Series 2 Large is the larger version of the medium and it can carry a 17” laptop and enough clothes for a 3-4 night trip. Like all Knack products, this new Series 2 Large offers the same intelligent organization for your everyday things plus patent-pending travel function. Compare Sizes

The Series 2 Large is the larger version of the medium and... read more >

Series 1: Small Expandable Knack Pack

Our small backpacks are the perfect size for work and play every day. Need more room for gym clothes or an extra outfit? Just unzip and expand the hidden suitcase compartment and pack it up. Compare Sizes

Our small backpacks are the perfect size for work and play... read more >

Knack’s collection of modern backpacks redefines what a professional backpack should be. We started with the premise that days are hectic enough without having to carry several bags at the same time. So, each of our lightweight, modern backpacks not only provide great everyday function, they also offer patent-pending travel function in the same bag. One Bag Life is finally here.