OPPOSETHIS Invisible CARRY-ON backpack vs. Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag

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 backpackFeatureHynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag
Storage
N Compression Y
None Expanded Capacity None
1 Opening 1
Y Passport Y
N Passthrough N
Carry
Y Backpack hideable
N Hip Belt hideable
Y Sternum Strap Y
Inside
15in Laptop 17in
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 blendwater repellent 900D PU

Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag

Front facing view of the Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag
Capacity42 L
Weight2.1 kg
Dimensions54×35×23 cm
Airline fit69%
Price$90

Key differences between the OPPOSETHIS Invisible CARRY-ON backpack and Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag

Both have: passport pocket, sternum strap, 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. 130 accept both. 44 accept only the OPPOSETHIS Invisible CARRY-ON backpack, and 0 accept only the Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag.

Only the OPPOSETHIS Invisible CARRY-ON backpack fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, Cayman Airways, 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, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.

OPPOSETHIS Invisible CARRY-ON backpack vs. Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag: which should you pack?

The Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag carries 21L more than the OPPOSETHIS Invisible CARRY-ON backpack (21L vs. 42L), while the OPPOSETHIS Invisible CARRY-ON backpack is the lighter pack at 0.85kg (vs. 2.1kg). 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 Hynes Eagle 42L Rolling Wheeled Backpack Flight Approved Carry on Luggage Bag; if you want to travel lighter, the OPPOSETHIS Invisible CARRY-ON backpack is the better call.