Alpha One-Niner Evade 1.5 Backpack vs. Alpha One-Niner Whitley Backpack

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

Alpha One-Niner Evade 1.5 Backpack

Front facing view of the Alpha One-Niner Evade 1.5 Backpack
Capacity22 L
Weight1.5 kg
Dimensions47×31×14 cm
Airline fit92%
Price$225

Feature by feature

Alpha One-Niner Evade 1.5 BackpackFeatureAlpha One-Niner Whitley Backpack
Storage
2 Compression N
None Expanded Capacity None
1 Opening 1
back Passport front
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt N
removable Sternum Strap removable
Inside
16in Laptop 16in
5 Main Compartments 3
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
Dimension-Polyant’s X42, Cordura 500D Nylon, 630D HD TwillAvailable in:X-Pac X42, 500D, 1050D Ballistic Nylon

Alpha One-Niner Whitley Backpack

Front facing view of the Alpha One-Niner Whitley Backpack
Capacity20 L
Weight1.2 kg
Dimensions47×28×15 cm
Airline fit93%
Price$200

Key differences between the Alpha One-Niner Evade 1.5 Backpack and Alpha One-Niner Whitley Backpack

Both have: backpack straps, sternum strap, laptop sleeve, built-in organizer, water bottle pockets, 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 Alpha One-Niner Evade 1.5 Backpack, and 2 accept only the Alpha One-Niner Whitley Backpack.

Only the Alpha One-Niner Whitley Backpack fits

Air Niugini, Great Lakes Airlines.

Alpha One-Niner Evade 1.5 Backpack vs. Alpha One-Niner Whitley Backpack: which should you pack?

The Alpha One-Niner Evade 1.5 Backpack carries 2L more than the Alpha One-Niner Whitley Backpack (22L vs. 20L), while the Alpha One-Niner Whitley Backpack is the lighter pack at 1.2kg (vs. 1.5kg). For carry-on flexibility, the Alpha One-Niner Whitley Backpack fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpha One-Niner Evade 1.5 Backpack; if you want to travel lighter, the Alpha One-Niner Whitley Backpack is the better call.