• Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack Alloy Gray
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack Midnight Black
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
  • Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
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Series 2: Large Expandable Knack Pack - Alloy Gray - Factory Second

Color – Alloy Gray
$176.99
$295.00
$176.99

or 4 interest-free payments of $45 with

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This product is sold "as is" and is not eligible for returns or exchanges.
Laptop

Laptop: Fits up to 17" Laptop

Outfits

Outfits: 3 - 4

Unexpanded

Unexpanded: 30 Liters

Expanded

Expanded: 46 Liters

Underseat

Underseat: All Jets (when unexpanded)

Overhead

Overhead: All Jets

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Description

The Series 2 Large is the larger version of the medium and it can carry up to a 17” laptop and enough clothes for a 3-4 night trip.

Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack Alloy Gray
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (Factory Seconds) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack Midnight Black
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack
Series 2: Large Expandable Knack Pack (FACTORY SECONDS) Backpack Knack

Product Details

Key Features

Key Everyday Features

  • Easy-access, padded side-zip computer pocket for up to 17" laptops
  • Spacious main compartment with organization pockets, fleece-lined tablet pocket and removable key leash
  • Hidden, zip-away side water bottle pocket
  • Zip tuck-away back storage pocket for shoulder straps
  • Side handle for easy carry
  • Removable, adjustable sternum strap
  • Black metal Knack logo hardware

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
  • Hidden trolley sleeve slips over wheeled luggage handles
  • Removable waist straps for carrying heavy loads comfortably

Key Technical Features

  • Custom-developed, durable, water-resistant body fabric
  • Molded, comfort-cool foam back panel
  • YKK™ water-resistant zipper with custom-designed pullers

Dimensions

Pack Dimensions (LxWxD):

  • Unexpanded: 21.5" x 14" x 4.5"
  • Expanded: 21.5" x 14" x 9.5"

Laptop Pocket Dimensions (LxWxD):

  • Pocket Opening: 16"
  • Dimensions: 17.5" x 12.5" x 2" (fits up to 17” laptop)

Volume

Unexpanded: 30 Liters

Expanded: 46 Liters

Weight

Weight: 3 pounds 4 ounces

Material

Fabric: Lightweight, 420 denier, high-density, nylon fabric woven with high-twist yarn for great durability. PU coating for water-resistance. Tested to carry loads up to 40 pounds.

Durable 840D ballistic nylon bottom panel for enhanced wear characteristics.

Lining Fabric: Custom, stain-resistant, 150 denier polyester logo print lining with anti-microbial treatment to inhibit mold and mildew

Zippers: Water-resistant YKK™ reverse coil zippers

Zipper Pullers: Strong, custom-designed cast zinc alloy zipper pullers

Hardware: Duraflex™ buckles and sliders

Back Panel Material: Low R-factor, customized, comfort-cool EVA memory foam

Corporate Orders

For orders over 10 units or for Knack Products with custom corporate logos, please contact: corporate@knackbags.com. To learn more about corporate gifts, please click here.

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Customer Reviews

Based on 1 review
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R
Ryan
Highly recommend

If you travel often or juggle work and life on the go, the Knack Series 2 Backpack (Large) might be the only bag you need.

The expandable main compartment is a game-changer—when zipped out, it easily holds enough clothes for a 3-4 night trip. I packed it for my current trip and was surprised by how much it fit without feeling bulky or overstuffed, and it fit under the plane seat.

The dedicated laptop compartment is padded and roomy enough to comfortably fit up to a 17” laptop, and I appreciate the peace of mind knowing my tech is protected. The organizational layout inside is intuitive, with just the right amount of pockets for cords, chargers, notebooks, and personal items—without turning into a black hole which seems to be the normal struggle I have with larger backpacks.

What really sets the Series 2 apart is its ability to transition seamlessly between a professional backpack and a travel bag. It’s sleek enough to bring into a client meeting, yet practical enough for airport terminals and train stations. The build quality is also top-tier—water-resistant fabric, durable zippers, and a sturdy, structured frame that holds its shape even when fully packed.

I’m on my first trip with it now, and I already can’t wait to use it again. The Knack Series 2 Large nails the balance between function, form, and flexibility.