tomtoc TechPack-T73 vs. Day Owl Backpack Pro

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

tomtoc TechPack-T73

Front facing view of the tomtoc TechPack-T73
Capacity30 L
Weight1.3 kg
Dimensions47×31×17 cm
Airline fit92%
Price$200

Feature by feature

tomtoc TechPack-T73FeatureDay Owl Backpack Pro
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
front, side Passport top, back
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap N
Inside
16in Laptop 16in
5 Main Compartments 6
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 1, side
Y Water Resistant Y
Material
X-Pac front panel, cordura(?) mixwaxed canvas

Day Owl Backpack Pro

Front facing view of the Day Owl Backpack Pro
Capacity21 L
Weight1.1 kg
Dimensions43×31×13 cm
Airline fit95%
Price$155

Key differences between the tomtoc TechPack-T73 and Day Owl Backpack Pro

Both have: luggage passthrough, backpack straps, laptop sleeve, built-in organizer, water bottle pockets, 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. 0 accept only the tomtoc TechPack-T73, and 5 accept only the Day Owl Backpack Pro.

Only the Day Owl Backpack Pro fits

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

tomtoc TechPack-T73 vs. Day Owl Backpack Pro: which should you pack?

The tomtoc TechPack-T73 carries 9L more than the Day Owl Backpack Pro (30L vs. 21L), while the Day Owl Backpack Pro is the lighter pack at 1.1kg (vs. 1.3kg). For carry-on flexibility, the Day Owl Backpack Pro fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the tomtoc TechPack-T73; if you want to travel lighter, the Day Owl Backpack Pro is the better call.