Mammut Lithium 30 vs. REI Co-op Trail 40

Key differences between the Mammut Lithium 30 and REI Co-op Trail 40

• Compression straps: 5 on the Mammut Lithium 30; 4 on the REI Co-op Trail 40.
• Opening: Other on the Mammut Lithium 30; Clamshell on the REI Co-op Trail 40.
• Main compartments: 2 on the Mammut Lithium 30; 5 on the REI Co-op Trail 40.
• Built-in organizer: No on the Mammut Lithium 30; Yes on the REI Co-op Trail 40.

Both have: passport pocket, backpack straps, hip belt, sternum strap, rain cover, 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. 50 accept both. 25 accept only the Mammut Lithium 30, and 38 accept only the REI Co-op Trail 40.

Only the Mammut Lithium 30 fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Caraibes, Air France, Air India, Air Mauritius, All Nipon Airways, ANA, Boliviana de Aviacion, Czech Airlines, Gol Linhas Aereas, Great Lakes Airlines, Iberia, Indigo, Interjet, Iran Air, Japan Airlines, Jet Airways, Kenya Airways, KLM, LATAM , Peach, Sky Airlines.

Only the REI Co-op Trail 40 fits

Air Asia, Air Macau, Air Wisconsin, AirAsiaX, Alaska Airlines, Allegiant Air, American Airlines, Avianca , Bahamasair, Bangkok Airways, Biman Bangladesh, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, CommutAir, Delta Airlines, Dragonair, EVA Air, Garuda Indonesia, Hawaiian Airlines, Hong Kong Airlines, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kulula, Malaysia Airlines, Mango, Qantas Airways, Republic Airways, Skywest, Inc., South African Airways, SriLankan Airlines, Trans States, United Airlines, Vietnam Airlines, Virgin Atlantic.