STM Haven vs. HEIMPLANET Motion Arc 20

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

STM Haven

by Stm
Front facing view of the STM Haven
Capacity20 L
Weight0.9 kg
Dimensions47×28×13 cm
Airline fit93%
Price$100

Feature by feature

STM HavenFeatureHEIMPLANET Motion Arc 20
Storage
N 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 removable
Inside
15in Laptop 15in
5 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder 1
Y Water Resistant Y
Material
Polyester210 D Ripstop Nylon Melange with PEVR lamination

HEIMPLANET Motion Arc 20

Front facing view of the HEIMPLANET Motion Arc 20
Capacity20 L
Weight0.74 kg
Dimensions52×32×22 cm
Airline fit70%
Price$169

Key differences between the STM Haven and HEIMPLANET Motion Arc 20

Both have: backpack straps, laptop sleeve, 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. 133 accept both. 43 accept only the STM Haven, and 0 accept only the HEIMPLANET Motion Arc 20.

Only the STM Haven fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Great Lakes Airlines, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Qatar Airways, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, Xiamen.

STM Haven vs. HEIMPLANET Motion Arc 20: which should you pack?

The STM Haven carries the same capacity as the HEIMPLANET Motion Arc 20 (20L vs. 20L), while the HEIMPLANET Motion Arc 20 is the lighter pack at 0.74kg (vs. 0.9kg). For carry-on flexibility, the STM Haven fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Haven; if you want to travel lighter, the HEIMPLANET Motion Arc 20 is the better call.