Cotopaxi Allpa Travel Pack 35L Del Día vs. Peak Design Outdoor Backpack 45L

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

Cotopaxi Allpa Travel Pack 35L Del Día

Front facing view of the Cotopaxi Allpa Travel Pack 35L Del Día
Capacity35 L
Weight1.587 kg
Dimensions51×30×20 cm
Airline fit89%
Price$180

Feature by feature

Cotopaxi Allpa Travel Pack 35L Del DíaFeaturePeak Design Outdoor Backpack 45L
Storage
N Compression N
None Expanded Capacity 45L
1 Opening 1
N Passport N
N Passthrough N
Carry
hideable Backpack Y
removable Hip Belt removable
Y Sternum Strap removable
Inside
15in Laptop 16in
1 Main Compartments 1
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder 4, side
Y Water Resistant Y
Material
100% repurposed nylonUltralight Terra Shell™ 210D ripstop

Peak Design Outdoor Backpack 45L

Front facing view of the Peak Design Outdoor Backpack 45L
Capacity35 L
Weight1.6 kg
Dimensions56×31×17 cm
Airline fit47%
Price$330

Key differences between the Cotopaxi Allpa Travel Pack 35L Del Día and Peak Design Outdoor Backpack 45L

Both have: hip belt, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 88 accept both. 81 accept only the Cotopaxi Allpa Travel Pack 35L Del Día, and 0 accept only the Peak Design Outdoor Backpack 45L.

Only the Cotopaxi Allpa Travel Pack 35L Del Día fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Malta, Air Mauritius, Air Serbia, Air Seychelles, All Nipon Airways, ANA, Asiana Airlines, ATA Airlines, Austrian, Azerbaijan Airlines, Blue Air, Boliviana de Aviacion, Brussels Airlines, Bulgaria Air, China Eastern, Czech Airlines, Emirates Airlines, Enter Air, Ethiopian Airlines, Eurowings, Fiji Airways, Flair Air, flybe, Gol Linhas Aereas, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Japan Airlines, Jet Airways, Juneyao Airlines, Kenya Airways, KLM, LATAM , Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Meridiana Fly, Mesa Airlines, Nordwind Airlines, Norwegian, Oman Air, Pakistan International, Peach, Porter Airlines, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Turkish Airlines, Ukraine International, VIM Airlines (Closed), Volotea, WestJet, Xiamen.

Cotopaxi Allpa Travel Pack 35L Del Día vs. Peak Design Outdoor Backpack 45L: which should you pack?

The Cotopaxi Allpa Travel Pack 35L Del Día carries the same capacity as the Peak Design Outdoor Backpack 45L (35L vs. 35L), while the Cotopaxi Allpa Travel Pack 35L Del Día is the lighter pack at 1.587kg (vs. 1.6kg). For carry-on flexibility, the Cotopaxi Allpa Travel Pack 35L Del Día fits 89% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Allpa Travel Pack 35L Del Día; if you want to travel lighter, the Cotopaxi Allpa Travel Pack 35L Del Día is the better call.