Millican Mathew vs. Boundary Supply Rennen X-Pac Daypack

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 MathewFeatureBoundary Supply Rennen X-Pac Daypack
Storage
N Compression N
None Expanded Capacity None
0 Opening 4
N Passport N
N Passthrough N
Carry
Backpack Y
N Hip Belt N
N Sternum Strap N
Inside
15in Laptop 15in
4 Main Compartments 1
N Organizer N
Outside
× Hard Shell ×
Rain-fly N
Water Bottle Holder 1
Y Water Resistant Y
Material
100% organic cotton canvas outer (weatherproofed)Waterproof 100% recycled polyester rain cover100% organic cotton lining70% vegetable tanned leather.Custom VX21 X-Pac material

Boundary Supply Rennen X-Pac Daypack

Front facing view of the Boundary Supply Rennen X-Pac Daypack
Capacity22 L
Weight0.9 kg
Dimensions46×28×18 cm
Airline fit95%
Price$170

Key differences between the Millican Mathew and Boundary Supply Rennen X-Pac Daypack

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. 177 accept both. 4 accept only the Millican Mathew, and 2 accept only the Boundary Supply Rennen X-Pac Daypack.

Only the Millican Mathew fits

Air Tahiti, Gulf Air, VivaColombia, Volaris.

Only the Boundary Supply Rennen X-Pac Daypack fits

Air Niugini, Great Lakes Airlines.

Millican Mathew vs. Boundary Supply Rennen X-Pac Daypack: which should you pack?

The Millican Mathew carries the same capacity as the Boundary Supply Rennen X-Pac Daypack (22L vs. 22L), while the Boundary Supply Rennen X-Pac Daypack is the lighter pack at 0.9kg (vs. 1.2kg). 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 Millican Mathew; if you want to travel lighter, the Boundary Supply Rennen X-Pac Daypack is the better call.