Knack Bags Medium Expandable Knack Pack v2 vs. Yeti All-Weather Backpack 25L

Two carry-on travel backpacks, compared spec for spec.

Knack Bags Medium Expandable Knack Pack v2

Front facing view of the Knack Bags Medium Expandable Knack Pack v2
Capacity24 L
Weight1.4 kg
Dimensions48×31×11 cm
Airline fit92%
Price$265

Feature by feature

Knack Bags Medium Expandable Knack Pack v2FeatureYeti All-Weather Backpack 25L
Storage
N Compression N
35L Expanded Capacity None
1 Opening 1
front Passport front
N Passthrough N
Carry
hideable Backpack Y
N Hip Belt removable
removable Sternum Strap removable
Inside
16in Laptop N
3 Main Compartments 3
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 1, front
Y Water Resistant Y
Material
PU coated 420 denier, high-density nylonDryHide shell

Yeti All-Weather Backpack 25L

by Yeti
Front facing view of the Yeti All-Weather Backpack 25L
Capacity25 L
Weight1.6 kg
Dimensions55×35×23 cm
Airline fit67%
Price$250

Key differences between the Knack Bags Medium Expandable Knack Pack v2 and Yeti All-Weather Backpack 25L

Both have: passport pocket, sternum strap, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 127 accept both. 47 accept only the Knack Bags Medium Expandable Knack Pack v2, and 0 accept only the Yeti All-Weather Backpack 25L.

Only the Knack Bags Medium Expandable Knack Pack v2 fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, Cayman Airways, China Eastern, Croatia Air, Emirates Airlines, Enter Air, Etihad Airways, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Scoot, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.

Knack Bags Medium Expandable Knack Pack v2 vs. Yeti All-Weather Backpack 25L: which should you pack?

The Yeti All-Weather Backpack 25L carries 1L more than the Knack Bags Medium Expandable Knack Pack v2 (24L vs. 25L), while the Knack Bags Medium Expandable Knack Pack v2 is the lighter pack at 1.4kg (vs. 1.6kg). For carry-on flexibility, the Knack Bags Medium Expandable Knack Pack v2 fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Yeti All-Weather Backpack 25L; if you want to travel lighter, the Knack Bags Medium Expandable Knack Pack v2 is the better call.