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: Medium Knack Pack. Clean design with organization pockets inside.
Series 2: Medium Knack Pack. Clean design with organization pockets inside.
Best Seller

Series 2 Knack Pack

Medium Expandable Backpack

$245.00

$245.00

Color: Storm Gray

Color: Midnight Black

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Laptops: Fits 15"
Outfits: 2-3
Under seat: All Jets
Overhead: All Jets
Unexpanded: 24 Liters
Expanded: 35 Liters

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.

Medium Knack Pack. Clean design with organization pockets.
Medium Knack Pack. Clean design with organization pockets.
Medium Knack Pack. Clean design with organization pockets.
Best Seller

Series 1 Knack Pack

Medium Expandable Backpack

$210.00

$210.00

$210.00

Color: Savile Gray

Color: Stealth Black

Color: Indigo Blue

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Laptops: Fits 15"
Outfits: 2-3
Under seat: All Jets
Overhead: All Jets
Unexpanded: 27 Liters
Expanded: 39 Liters

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.

Large Knack Pack. Clean design with organization pockets.
Large Knack Pack. Clean design with organization pockets.

Series 1 Knack Pack

Large Expandable Backpack

$255.00

$255.00

Color: Stealth Black

Color: Savile Gray

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Laptops: Fits 17"
Outfits: 3-4
Under seat: All Jets
Overhead: All Jets
Unexpanded: 30 Liters
Expanded: 46 Liters

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.

Small Knack Pack. Clean design with organization pockets.
Small Knack Pack. Clean design with organization pockets.
Small Knack Pack. Clean design with organization pockets.
Small Knack Pack. Clean design with organization pockets.

Series 1 Knack Pack

Small Expandable Backpack

$175.00

$175.00

$175.00

$175.00

Color: Sangria Red

Color: Savile Gray

Color: Stealth Black

Color: Indigo Blue

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Laptops: Fits 13"
Outfits: 1-2
Under seat: All Jets
Overhead: All Jets
Unexpanded: 15 Liters
Expanded: 27 Liters

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.

Medium Knack Pack. Clean design with organization pockets.
SALE

Series 1 Knack Pack

Medium Leather Expandable Backpack

$475.00$329.99

Color: Black Napa Leather

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Laptops: Fits 15"
Outfits: 2-3
Under seat: All Jets
Overhead: All Jets
Unexpanded: 27 Liters
Expanded: 39 Liters

Knack’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.