Millican Mathew vs. Oppose This Invisible Carry-On

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

Millican Mathew

Front facing view of the Millican Mathew
Capacity22 L
Weight1.2 kg
Dimensions40×33×15 cm
Airline fit96%
Price$180

Feature by feature

Millican MathewFeatureOppose This Invisible Carry-On
Storage
N Compression
None Expanded Capacity None
0 Opening 0
N Passport top
N Passthrough N
Carry
Backpack
N Hip Belt N
N Sternum Strap removable
Inside
15in Laptop 15in
4 Main Compartments 4
N Organizer Y
Outside
× Hard Shell ×
Rain-fly N
Water Bottle Holder
Y Water Resistant Y
Material
100% organic cotton canvas outer (weatherproofed)Waterproof 100% recycled polyester rain cover100% organic cotton lining70% vegetable tanned leather.Shell: 800x600D lightweight waterproof nylon-polyester blend

Oppose This Invisible Carry-On

Front facing view of the Oppose This Invisible Carry-On
Capacity24 L
Weight1.5 kg
Dimensions53×35×15 cm
Airline fit88%
Price$250

Key differences between the Millican Mathew and Oppose This Invisible Carry-On

Both have: laptop sleeve, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 166 accept both. 15 accept only the Millican Mathew, and 0 accept only the Oppose This Invisible Carry-On.

Only the Millican Mathew fits

Air Tahiti, American Eagle, Belavia, Cayman Airways, easyJet, Etihad Airways, Gulf Air, Oman Air, Qatar Airways, Ravn Alaska, Regional Express, Royal Jordanian, Virgin Australia, VivaColombia, Volaris.

Millican Mathew vs. Oppose This Invisible Carry-On: which should you pack?

The Oppose This Invisible Carry-On carries 2L more than the Millican Mathew (22L vs. 24L), while the Millican Mathew is the lighter pack at 1.2kg (vs. 1.5kg). For carry-on flexibility, the Millican Mathew fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Oppose This Invisible Carry-On; if you want to travel lighter, the Millican Mathew is the better call.