Cotopaxi Tasra 16L vs. Alpha One-Niner Whitley Backpack

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

Cotopaxi Tasra 16L

Front facing view of the Cotopaxi Tasra 16L
Capacity16 L
Weight0.5 kg
Dimensions43×27×14 cm
Airline fit96%
Price$85

Feature by feature

Cotopaxi Tasra 16LFeatureAlpha One-Niner Whitley Backpack
Storage
N Compression N
None Expanded Capacity None
0 Opening 1
front Passport front
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap removable
Inside
13in Laptop 16in
3 Main Compartments 3
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
N Water Resistant Y
Material
100% recycled polyesterAvailable 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 Cotopaxi Tasra 16L and Alpha One-Niner Whitley Backpack

Both have: passport pocket, backpack straps, built-in organizer, water bottle pockets.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 176 accept both. 5 accept only the Cotopaxi Tasra 16L, and 0 accept only the Alpha One-Niner Whitley Backpack.

Only the Cotopaxi Tasra 16L fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska.

Cotopaxi Tasra 16L vs. Alpha One-Niner Whitley Backpack: which should you pack?

The Alpha One-Niner Whitley Backpack carries 4L more than the Cotopaxi Tasra 16L (16L vs. 20L), while the Cotopaxi Tasra 16L is the lighter pack at 0.5kg (vs. 1.2kg). For carry-on flexibility, the Cotopaxi Tasra 16L fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpha One-Niner Whitley Backpack; if you want to travel lighter, the Cotopaxi Tasra 16L is the better call.