Patagonia Tres MLC® 45L vs. Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack

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

Patagonia Tres MLC® 45L

Front facing view of the Patagonia Tres MLC® 45L
Capacity45 L
Weight1.5 kg
Dimensions54×41×18 cm
Airline fit26%
Price$179

Feature by feature

Patagonia Tres MLC® 45LFeatureHynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
N Passport Y
Y Passthrough Y
Carry
hideable Backpack hideable
N Hip Belt N
Y Sternum Strap Y
Inside
15in Laptop 15in
1 Main Compartments 3
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
Y Water Resistant Y
Material
630-denier nylon, 200-denier 100% recycled polyesteWater Repellent Nylon

Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack

Front facing view of the Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack
Capacity42 L
Weight1.65 kg
Dimensions54×35×23 cm
Airline fit69%
Price$68

Key differences between the Patagonia Tres MLC® 45L and Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack

Both have: luggage passthrough, backpack straps, sternum strap, laptop sleeve, built-in organizer, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 49 accept both. 0 accept only the Patagonia Tres MLC® 45L, and 81 accept only the Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack.

Only the Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Canada, Air France, Air India, Air Macau, Air Mauritius, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cebu Pacific, China Airlines, CommutAir, Conviasa, Copa Airlines, Croatia Air, Delta Airlines, Dragonair, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Flair Air, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Indigo, Interjet, Japan Airlines, Jet Airways, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Middle East Airlines, Monarch Airlines, Norwegian, Peach, Porter Airlines, Qantas Airways, Republic Airways, SAS Scandinavian, Scoot, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Swiss Int'l Air Lines, Tiger Airways, Trans States, Turkish Airlines, United Airlines, Vietnam Airlines, Virgin Atlantic.

Patagonia Tres MLC® 45L vs. Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack: which should you pack?

The Patagonia Tres MLC® 45L carries 3L more than the Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack (45L vs. 42L), while the Patagonia Tres MLC® 45L is the lighter pack at 1.5kg (vs. 1.65kg). For carry-on flexibility, the Hynes Eagle 42L Travel Backpack Anti Theft Carry on Backpack fits 69% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Tres MLC® 45L; if you want to travel lighter, the Patagonia Tres MLC® 45L is the better call.