Nomatic Travel 40L Bag vs. Peak Design Travel Backpack 45L

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

Nomatic Travel 40L Bag

Front facing view of the Nomatic Travel 40L Bag
Capacity40 L
Weight1.6 kg
Dimensions53×36×23 cm
Airline fit63%
Price$330

Feature by feature

Nomatic Travel 40L BagFeaturePeak Design Travel Backpack 45L
Storage
N Compression 1
None Expanded Capacity 45L
1 Opening 1
top Passport top
Y Passthrough Y
Carry
hideable Backpack hideable
removable Hip Belt hideable
Y Sternum Strap removable
Inside
16in Laptop 16in
7 Main Compartments 7
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
90% Polyester / 10% Nylon Weather Resistant YKK Zippersshell: Weatherproof 400D nylon canvas bottom: 900D nylon weatherproof zippers

Peak Design Travel Backpack 45L

Front facing view of the Peak Design Travel Backpack 45L
Capacity35 L
Weight2.1 kg
Dimensions56×33×24 cm
Airline fit26%
Price$300

Key differences between the Nomatic Travel 40L Bag and Peak Design Travel Backpack 45L

Both have: passport pocket, luggage passthrough, backpack straps, laptop sleeve, built-in organizer, 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. 49 accept both. 71 accept only the Nomatic Travel 40L Bag, and 0 accept only the Peak Design Travel Backpack 45L.

Only the Nomatic Travel 40L Bag fits

Aer Lingus, Aeroflot, Aeromexico, Air Asia, Air Canada, Air Caraibes, Air Macau, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cebu Pacific, China Airlines, CommutAir, Croatia Air, Czech Airlines, Delta Airlines, Dragonair, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Flair Air, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Interjet, Iran Air, Japan Airlines, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kulula, LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Norwegian, Peach, Porter Airlines, Qantas Airways, Republic Airways, SAS Scandinavian, Scoot, Skywest, Inc., South African Airways, SriLankan Airlines, Swiss Int'l Air Lines, Tiger Airways, Trans States, Turkish Airlines, United Airlines, Vietnam Airlines, Virgin Atlantic, WestJet.

Nomatic Travel 40L Bag vs. Peak Design Travel Backpack 45L: which should you pack?

The Nomatic Travel 40L Bag carries 5L more than the Peak Design Travel Backpack 45L (40L vs. 35L), while the Nomatic Travel 40L Bag is the lighter pack at 1.6kg (vs. 2.1kg). For carry-on flexibility, the Nomatic Travel 40L Bag fits 63% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Nomatic Travel 40L Bag; if you want to travel lighter, the Nomatic Travel 40L Bag is the better call.