Aer Duffel Pack 3 X-Pac vs. Alpha One-Niner Recon Nine Evade 1.5

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

Aer Duffel Pack 3 X-Pac

by Aer
Front facing view of the Aer Duffel Pack 3 X-Pac
Capacity21 L
Weight1.3 kg
Dimensions52×30×20 cm
Airline fit88%
Price$210

Feature by feature

Aer Duffel Pack 3 X-PacFeatureAlpha One-Niner Recon Nine Evade 1.5
Storage
N Compression Y
None Expanded Capacity None
0 Opening 0
top, side Passport back
Y Passthrough N
Carry
Y Backpack Y
N Hip Belt N
removable Sternum Strap removable
Inside
16in Laptop 17in
5 Main Compartments 5
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 2
Y Water Resistant Y
Material
VX-42 X-Pac (also in 1680D Cordura)Solid Color 500D Nylonor Camouflage 500D Nylon Corduraor 420D Diamond Ripstop Nylon

Alpha One-Niner Recon Nine Evade 1.5

Front facing view of the Alpha One-Niner Recon Nine Evade 1.5
Capacity27 L
Weight1.6 kg
Dimensions47×31×18 cm
Airline fit92%
Price$160

Key differences between the Aer Duffel Pack 3 X-Pac and Alpha One-Niner Recon Nine Evade 1.5

Both have: backpack straps, 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. 167 accept both. 0 accept only the Aer Duffel Pack 3 X-Pac, and 7 accept only the Alpha One-Niner Recon Nine Evade 1.5.

Only the Alpha One-Niner Recon Nine Evade 1.5 fits

Belavia, Etihad Airways, Oman Air, Qatar Airways, Regional Express, Royal Jordanian, Virgin Australia.

Aer Duffel Pack 3 X-Pac vs. Alpha One-Niner Recon Nine Evade 1.5: which should you pack?

The Alpha One-Niner Recon Nine Evade 1.5 carries 6L more than the Aer Duffel Pack 3 X-Pac (21L vs. 27L), while the Aer Duffel Pack 3 X-Pac is the lighter pack at 1.3kg (vs. 1.6kg). For carry-on flexibility, the Alpha One-Niner Recon Nine Evade 1.5 fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpha One-Niner Recon Nine Evade 1.5; if you want to travel lighter, the Aer Duffel Pack 3 X-Pac is the better call.