Fjallraven Rucksack No. 21 Medium vs. Cotopaxi Nazca 24L

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

Fjallraven Rucksack No. 21 Medium

Front facing view of the Fjallraven Rucksack No. 21 Medium
Capacity20 L
Weight0.96 kg
Dimensions44×28×13 cm
Airline fit96%
Price$180

Feature by feature

Fjallraven Rucksack No. 21 MediumFeatureCotopaxi Nazca 24L
Storage
N Compression N
None Expanded Capacity None
3 Opening 1
N Passport N
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap Y
Inside
15in Laptop 15in
1 Main Compartments 1
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
2 Water Bottle Holder N
Y Water Resistant Y
Material
G-1000® HeavyDuty Eco: 65% polyester, 35% cotton630D nylon/cotton canvas

Cotopaxi Nazca 24L

Front facing view of the Cotopaxi Nazca 24L
Capacity24 L
Weight1.33 kg
Dimensions50×27×14 cm
Airline fit92%
Price$80

Key differences between the Fjallraven Rucksack No. 21 Medium and Cotopaxi Nazca 24L

Both have: backpack straps, sternum strap, 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. 174 accept both. 7 accept only the Fjallraven Rucksack No. 21 Medium, and 0 accept only the Cotopaxi Nazca 24L.

Only the Fjallraven Rucksack No. 21 Medium fits

Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska, Regional Express, Virgin Australia.

Fjallraven Rucksack No. 21 Medium vs. Cotopaxi Nazca 24L: which should you pack?

The Cotopaxi Nazca 24L carries 4L more than the Fjallraven Rucksack No. 21 Medium (20L vs. 24L), while the Fjallraven Rucksack No. 21 Medium is the lighter pack at 0.96kg (vs. 1.33kg). For carry-on flexibility, the Fjallraven Rucksack No. 21 Medium fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Nazca 24L; if you want to travel lighter, the Fjallraven Rucksack No. 21 Medium is the better call.