Tom Bihn Techonaut 30 vs. Ministry of Supply Boston One

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

Tom Bihn Techonaut 30

Capacity30 L
Weight1 kg
Dimensions50×32×21 cm
Airline fit73%
Price$400

Feature by feature

Tom Bihn Techonaut 30FeatureMinistry of Supply Boston One
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
top Passport top
Y Passthrough Y
Carry
hideable Backpack hideable
removable Hip Belt N
removable Sternum Strap Y
Inside
16in Laptop 16in
5 Main Compartments 4
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 1, internal
Y Water Resistant Y
Material
400d Halcyon/420d nylon ripstop exterior900D 100% polyester shell

Ministry of Supply Boston One

Front facing view of the Ministry of Supply Boston One
Capacity28 L
Weight1.1 kg
Dimensions47×30×20 cm
Airline fit93%
Price$250

Key differences between the Tom Bihn Techonaut 30 and Ministry of Supply Boston One

Both have: passport pocket, luggage passthrough, backpack straps, 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. 138 accept both. 0 accept only the Tom Bihn Techonaut 30, and 37 accept only the Ministry of Supply Boston One.

Only the Ministry of Supply Boston One 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, flybe, Icelandair, InselAir, Juneyao Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Regional Express, Royal Brunei Airlines, 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.

Tom Bihn Techonaut 30 vs. Ministry of Supply Boston One: which should you pack?

The Tom Bihn Techonaut 30 carries 2L more than the Ministry of Supply Boston One (30L vs. 28L), while the Tom Bihn Techonaut 30 is the lighter pack at 1kg (vs. 1.1kg). For carry-on flexibility, the Ministry of Supply Boston One fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tom Bihn Techonaut 30; if you want to travel lighter, the Tom Bihn Techonaut 30 is the better call.