Alpaka Gear Elements Backpack Pro vs. Aer Tech Pack 3 X-Pac

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

Alpaka Gear Elements Backpack Pro

Front facing view of the Alpaka Gear Elements Backpack Pro
Capacity26 L
Weight1.3 kg
Dimensions48×31×18 cm
Airline fit92%
Price$190

Feature by feature

Alpaka Gear Elements Backpack ProFeatureAer Tech Pack 3 X-Pac
Storage
N Compression 4
None Expanded Capacity None
0 Opening 0
top Passport top
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap Y
Inside
16in Laptop 16in
3 Main Compartments 4
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 1, side
Y Water Resistant Y
Material
X-Pac VX42 Also: Axoflux Recycled Fabric (POLY 600D)VX-42 X-Pac (also in 1680D Cordura ballistic nylo)

Aer Tech Pack 3 X-Pac

by Aer
Front facing view of the Aer Tech Pack 3 X-Pac
Capacity16 L
Weight1.4 kg
Dimensions46×31×18 cm
Airline fit94%
Price$250

Key differences between the Alpaka Gear Elements Backpack Pro and Aer Tech Pack 3 X-Pac

Both have: passport pocket, luggage passthrough, 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. 174 accept both. 0 accept only the Alpaka Gear Elements Backpack Pro, and 3 accept only the Aer Tech Pack 3 X-Pac.

Only the Aer Tech Pack 3 X-Pac fits

American Eagle, easyJet, Ravn Alaska.

Alpaka Gear Elements Backpack Pro vs. Aer Tech Pack 3 X-Pac: which should you pack?

The Alpaka Gear Elements Backpack Pro carries 10L more than the Aer Tech Pack 3 X-Pac (26L vs. 16L), while the Alpaka Gear Elements Backpack Pro is the lighter pack at 1.3kg (vs. 1.4kg). For carry-on flexibility, the Aer Tech Pack 3 X-Pac fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpaka Gear Elements Backpack Pro; if you want to travel lighter, the Alpaka Gear Elements Backpack Pro is the better call.