Arktype Dashpack II vs. STM Trilogy

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

Arktype Dashpack II

Front facing view of the Arktype Dashpack II
Capacity15 L
Weight0.9 kg
Dimensions47×28×11 cm
Airline fit93%
Price$198

Feature by feature

Arktype Dashpack IIFeatureSTM Trilogy
Storage
2 Compression N
None Expanded Capacity None
4 Opening 4
N Passport N
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap N
Inside
13in Laptop 15in
3 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2
Y Water Resistant Y
Material
1680D DWR ballistic nylon YKK AquaGuard zippers Interior reinforced with 210D double-walled ripstop nylon100% polyester

STM Trilogy

by Stm
Front facing view of the STM Trilogy
Capacity24 L
Weight0.64 kg
Dimensions46×30×16 cm
Airline fit94%
Price$80

Key differences between the Arktype Dashpack II and STM Trilogy

Both have: backpack straps, 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. 175 accept both. 1 accept only the Arktype Dashpack II, and 3 accept only the STM Trilogy.

Only the Arktype Dashpack II fits

Great Lakes Airlines.

Only the STM Trilogy fits

American Eagle, easyJet, Ravn Alaska.

Arktype Dashpack II vs. STM Trilogy: which should you pack?

The STM Trilogy carries 9L more than the Arktype Dashpack II (15L vs. 24L), while the STM Trilogy is the lighter pack at 0.64kg (vs. 0.9kg). For carry-on flexibility, the STM Trilogy fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Trilogy; if you want to travel lighter, the STM Trilogy is the better call.