Mammut Aenergy 12 vs. Exped Core 35

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

Mammut Aenergy 12

Front facing view of the Mammut Aenergy 12
Capacity12 L
Weight0.3 kg
Dimensions46×23×17 cm
Airline fit95%
Price$80

Feature by feature

Mammut Aenergy 12FeatureExped Core 35
Storage
N Compression N
None Expanded Capacity None
1 Opening 3
N Passport N
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
removable Sternum Strap Y
Inside
N Laptop N
1 Main Compartments 1
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
N Water Resistant Y
Material
100% Polyamide1680 D Ballistic nylon, PU coated, 1'500 mm water column

Exped Core 35

Front facing view of the Exped Core 35
Capacity35 L
Weight0.1 kg
Dimensions62×30×23 cm
Airline fit13%
Price$137

Key differences between the Mammut Aenergy 12 and Exped Core 35

Both have: backpack straps, hip belt.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 24 accept both. 155 accept only the Mammut Aenergy 12, and 0 accept only the Exped Core 35.

Only the Mammut Aenergy 12 fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Macau, Air Malta, Air Mauritius, Air Niugini, Air Nostrum, Air Serbia, Air Seychelles, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, American Eagle, ANA, Asiana Airlines, ATA Airlines, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Belavia, Biman Bangladesh, Blue Air, Boliviana de Aviacion, British Airways, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Caribbean Airlines, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, China Eastern, CommutAir, Conviasa, Copa Airlines, Croatia Air, Czech Airlines, Delta Airlines, Dragonair, easyJet, EL AL, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, flybe, Frontier Airlines, Garuda Indonesia, Gol Linhas Aereas, Great Lakes Airlines, Hawaiian Airlines, Hong Kong Airlines, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kenya Airways, KLM, Kulula, Kuwait Air, LATAM , Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Middle East Airlines, Monarch Airlines, Nordwind Airlines, Norwegian, Oman Air, Onur Air, Pakistan International, Peach, PenAir, Porter Airlines, Qantas Airways, Qatar Airways, Ravn Alaska, Regional Express, Republic Airways, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Skywest, Inc., South African Airways, Southwest Airlines, Spirit Airlines, SriLankan Airlines, Sun Country, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Thai Airways, Tianjin Airlines (A320 & E190), Tiger Airways, Trans States, Travel Service Airlines, TUI, Turkish Airlines, Ukraine International, United Airlines, Uzbekistan Air, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Virgin Australia, Volotea, WestJet, WOW Airlines, Xiamen.

Mammut Aenergy 12 vs. Exped Core 35: which should you pack?

The Exped Core 35 carries 23L more than the Mammut Aenergy 12 (12L vs. 35L), while the Exped Core 35 is the lighter pack at 0.1kg (vs. 0.3kg). For carry-on flexibility, the Mammut Aenergy 12 fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Exped Core 35; if you want to travel lighter, the Exped Core 35 is the better call.