Patagonia Tres Backpack 25L vs. Cotopaxi Allpa Travel Pack 42L Del Día
Two carry-on travel backpacks, compared spec for spec.
Patagonia Tres Backpack 25L
| Capacity | 25 L |
| Weight | 0.9 kg |
| Dimensions | 48×31×17 cm |
| Airline fit | 92% |
| Price | $129 |
Feature by feature
| Patagonia Tres Backpack 25L | Feature | Cotopaxi Allpa Travel Pack 42L Del Día |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| N | Passport | Y |
| Y | Passthrough | |
| Carry | ||
| hideable | Backpack | hideable |
| N | Hip Belt | removable |
| Y | Sternum Strap | Y |
| Inside | ||
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | Y |
| N | Water Bottle Holder | N |
| Y | Water Resistant | Y |
| Material | |
| 630-denier 100% nylon, 200-denier 100% recycled polyester | 100% repurposed nylon |
Cotopaxi Allpa Travel Pack 42L Del Día
| Capacity | 42 L |
| Weight | 1.905 kg |
| Dimensions | 55×34×22.5 cm |
| Airline fit | 68% |
| Price | $200 |
Key differences between the Patagonia Tres Backpack 25L and Cotopaxi Allpa Travel Pack 42L Del Día
- Passport pocket: No on the Patagonia Tres Backpack 25L; Yes on the Cotopaxi Allpa Travel Pack 42L Del Día.
- Hip belt: No on the Patagonia Tres Backpack 25L; Removable on the Cotopaxi Allpa Travel Pack 42L Del Día.
- Rain cover: No on the Patagonia Tres Backpack 25L; Yes on the Cotopaxi Allpa Travel Pack 42L Del Día.
Both have: 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. 129 accept both. 45 accept only the Patagonia Tres Backpack 25L, and 0 accept only the Cotopaxi Allpa Travel Pack 42L Del Día.
Only the Patagonia Tres Backpack 25L fits
Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Scoot, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.
Patagonia Tres Backpack 25L vs. Cotopaxi Allpa Travel Pack 42L Del Día: which should you pack?
The Cotopaxi Allpa Travel Pack 42L Del Día carries 17L more than the Patagonia Tres Backpack 25L (25L vs. 42L), while the Patagonia Tres Backpack 25L is the lighter pack at 0.9kg (vs. 1.905kg). For carry-on flexibility, the Patagonia Tres Backpack 25L fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Allpa Travel Pack 42L Del Día; if you want to travel lighter, the Patagonia Tres Backpack 25L is the better call.