KS Ultralight KS27 vs. Matador Beast28 Packable Backpack

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

KS Ultralight KS27

Front facing view of the KS Ultralight KS27
Capacity27 L
Weight0.3 kg
Dimensions55×28×16 cm
Airline fit87%
Price$130

Feature by feature

KS Ultralight KS27FeatureMatador Beast28 Packable Backpack
Storage
2 Compression 4
None Expanded Capacity None
0 Opening 1
top Passport top
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
removable Sternum Strap removable
Inside
N Laptop N
2 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
X-pac VX 07 YKK "waterproof zip"210D Robic® high tenacity nylon, UTS coated, DWR finish

Matador Beast28 Packable Backpack

Front facing view of the Matador Beast28 Packable Backpack
Capacity28 L
Weight0.7 kg
Dimensions56×28×18 cm
Airline fit47%
Price$150

Key differences between the KS Ultralight KS27 and Matador Beast28 Packable Backpack

Both have: passport pocket, backpack straps, hip belt, sternum strap, water bottle pockets, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 89 accept both. 75 accept only the KS Ultralight KS27, and 0 accept only the Matador Beast28 Packable Backpack.

Only the KS Ultralight KS27 fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Malta, Air Mauritius, Air Serbia, Air Seychelles, All Nipon Airways, ANA, Asiana Airlines, ATA Airlines, Austrian, Azerbaijan Airlines, Blue Air, Boliviana de Aviacion, Brussels Airlines, Bulgaria Air, China Eastern, Czech Airlines, Emirates Airlines, Enter Air, Ethiopian Airlines, Eurowings, Fiji Airways, Flair Air, flybe, Gol Linhas Aereas, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Japan Airlines, Jet Airways, Juneyao Airlines, Kenya Airways, KLM, LATAM , LOT Polish, Lufthansa, Luxair, Mahan Air, Meridiana Fly, Mesa Airlines, Nordwind Airlines, Norwegian, Pakistan International, Peach, Porter Airlines, Royal Brunei Airlines, Ryanair, S7, SAS Scandinavian, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Turkish Airlines, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.

KS Ultralight KS27 vs. Matador Beast28 Packable Backpack: which should you pack?

The Matador Beast28 Packable Backpack carries 1L more than the KS Ultralight KS27 (27L vs. 28L), while the KS Ultralight KS27 is the lighter pack at 0.3kg (vs. 0.7kg). For carry-on flexibility, the KS Ultralight KS27 fits 87% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Matador Beast28 Packable Backpack; if you want to travel lighter, the KS Ultralight KS27 is the better call.