Two-in-One Expandable Backpack Collection
Series 2 Medium Expandable Backpack
The minimal look. The soft touch of leather. The surprising lightness on your back. Series 2 is a delight for your senses and a joy to carry. Like all expandable Knack products, this new collection offers intelligent organization for your everyday things plus patent-pending travel function.




Series 2 Knack Pack
Medium Expandable Backpack
$265.00
$265.00
$265.00
$265.00
Color: Steel Blue
Color: Alloy Gray
Color: Olive
Color: Midnight Black
LEARN MORE ▶ LEARN MORE ▶ LEARN MORE ▶ LEARN MORE ▶Series 1 Medium Expandable Backpack
Our medium expandable 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.



Series 1 Knack Pack
Medium Expandable Backpack
$235.00
$235.00
$235.00
Color: Savile Gray
Color: Stealth Black
Color: Indigo Blue
LEARN MORE ▶ LEARN MORE ▶ LEARN MORE ▶Series 1 Large Expandable Backpack
With a spacious everyday compartment and a separate roomy, expandable packing compartment, large expandable Knack Packs have the capacity for whatever you want to bring.


Series 1 Knack Pack
Large Expandable Backpack
$270.00
$270.00
Color: Stealth Black
Color: Savile Gray
LEARN MORE ▶ LEARN MORE ▶Series 1 Small Expandable Backpack
Our small expandable backpacks are the perfect "around town" backpack 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.

Series 1 Medium Leather Expandable Backpack
Our best-selling Series 1 expandable Knack Pack in soft, luxurious Napa leather. Beautiful, yet surprisingly practical too. Over time, this supple, full-grain leather will develop a warm, rich patina that is unique to you and your backpack.
Series 1 Knack Pack
Medium Leather Expandable Backpack
Liquid error (sections/shops-bags line 65): product form must be given a productKnack’s collection of modern expandable 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 expandable backpacks not only provide great everyday function, they also offer patent-pending travel function in the same bag. One Bag Life is finally here.