OPPOSETHIS Invisible CARRY-ON backpack vs. Patagonia Tres Backpack 25L

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

OPPOSETHIS Invisible CARRY-ON backpack

Front facing view of the OPPOSETHIS Invisible CARRY-ON backpack
Capacity21 L
Weight0.85 kg
Dimensions47×32×15 cm
Airline fit92%
Price$255

Feature by feature

OPPOSETHIS Invisible CARRY-ON backpackFeaturePatagonia Tres Backpack 25L
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
Y Passport N
N Passthrough Y
Carry
Y Backpack hideable
N Hip Belt N
Y Sternum Strap Y
Inside
15in Laptop 15in
1 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder N
Y Water Resistant Y
Material
800x600D lightweight waterproof nylon-polyester blend630-denier 100% nylon, 200-denier 100% recycled polyester

Patagonia Tres Backpack 25L

Front facing view of the Patagonia Tres Backpack 25L
Capacity25 L
Weight0.9 kg
Dimensions48×31×17 cm
Airline fit92%
Price$129

Key differences between the OPPOSETHIS Invisible CARRY-ON backpack and Patagonia Tres Backpack 25L

Both have: 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. 174 accept both. Every airline that takes one takes the other.

OPPOSETHIS Invisible CARRY-ON backpack vs. Patagonia Tres Backpack 25L: which should you pack?

The Patagonia Tres Backpack 25L carries 4L more than the OPPOSETHIS Invisible CARRY-ON backpack (21L vs. 25L), while the OPPOSETHIS Invisible CARRY-ON backpack is the lighter pack at 0.85kg (vs. 0.9kg). For carry-on flexibility, the OPPOSETHIS Invisible CARRY-ON backpack fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Tres Backpack 25L; if you want to travel lighter, the OPPOSETHIS Invisible CARRY-ON backpack is the better call.