Patagonia Altvia Pack 36L vs. Kathmandu Katabatic 28L Pack

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

Patagonia Altvia Pack 36L

Front facing view of the Patagonia Altvia Pack 36L
Capacity36 L
Weight0.992 kg
Dimensions60×31×27 cm
Airline fit3%
Price$179

Feature by feature

Patagonia Altvia Pack 36LFeatureKathmandu Katabatic 28L Pack
Storage
Y Compression Y
None Expanded Capacity None
0 Opening 4
N Passport N
N Passthrough N
Carry
Y Backpack Y
Y Hip Belt Y
Y Sternum Strap Y
Inside
N Laptop N
1 Main Compartments 1
Organizer Y
Outside
× Hard Shell ×
Y Rain-fly optional
2 Water Bottle Holder 2
Y Water Resistant Y
Material
140-denier 100% recycled nylon ripstop, 210-denier 100% recycled nylon ripstop100% Polyester

Kathmandu Katabatic 28L Pack

Front facing view of the Kathmandu Katabatic 28L Pack
Capacity28 L
Weight0.906 kg
Dimensions52×29×28 cm
Airline fit14%
Price$120

Key differences between the Patagonia Altvia Pack 36L and Kathmandu Katabatic 28L Pack

Both have: compression straps, 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. 6 accept both. 0 accept only the Patagonia Altvia Pack 36L, and 21 accept only the Kathmandu Katabatic 28L Pack.

Only the Kathmandu Katabatic 28L Pack fits

Air Europa, Air Koryo, Air Tahiti Nui, Azul Linhas, Caribbean Airlines, China Southern, Croatia Air, Cubana de Aviacion, Hainan Airlines, Korean Air, Philippine Airlines, Royal Air Morocco, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, SpiceJet, TAAG Angola, TAM Airlines, Ural Airlines.

Patagonia Altvia Pack 36L vs. Kathmandu Katabatic 28L Pack: which should you pack?

The Patagonia Altvia Pack 36L carries 8L more than the Kathmandu Katabatic 28L Pack (36L vs. 28L), while the Kathmandu Katabatic 28L Pack is the lighter pack at 0.906kg (vs. 0.992kg). For carry-on flexibility, the Kathmandu Katabatic 28L Pack fits 14% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Altvia Pack 36L; if you want to travel lighter, the Kathmandu Katabatic 28L Pack is the better call.