Osprey Transporter Carryon 44 vs. Tom Bihn Brain Bag
Two carry-on travel backpacks, compared spec for spec.
Osprey Transporter Carryon 44
| Capacity | 22 L |
| Weight | 0.9 kg |
| Dimensions | 43×25×23 cm |
| Airline fit | 75% |
| Price | $160 |
Feature by feature
| Osprey Transporter Carryon 44 | Feature | Tom Bihn Brain Bag |
|---|---|---|
| Storage | ||
| 2 | Compression | 4 |
| None | Expanded Capacity | None |
| 0 | Opening | 4 |
| top | Passport | top |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| Y | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside | ||
| N | Laptop | N |
| 6 | Main Compartments | 6 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| Recycled 100-denier x 210-denier high-tenacity nylon | 525 Ballistic Nylon |
Tom Bihn Brain Bag
| Capacity | 36 L |
| Weight | 1.3 kg |
| Dimensions | 46×36×23 cm |
| Airline fit | 66% |
| Price | $240 |
Key differences between the Osprey Transporter Carryon 44 and Tom Bihn Brain Bag
- Compression straps: 2 on the Osprey Transporter Carryon 44; 4 on the Tom Bihn Brain Bag.
- Opening: Other on the Osprey Transporter Carryon 44; Top zip on the Tom Bihn Brain Bag.
- Hip belt: Yes on the Osprey Transporter Carryon 44; Removable on the Tom Bihn Brain Bag.
- Water bottle pockets: 2, side on the Osprey Transporter Carryon 44; 1, side on the Tom Bihn Brain Bag.
Both have: passport pocket, backpack straps, sternum strap, 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. 125 accept both. 16 accept only the Osprey Transporter Carryon 44, and 0 accept only the Tom Bihn Brain Bag.
Only the Osprey Transporter Carryon 44 fits
Aerolineas Argentinas, Air France, Air India, Air Mauritius, Boliviana de Aviacion, Cayman Airways, Great Lakes Airlines, Gulf Air, Indigo, Jet Airways, Kenya Airways, KLM, LATAM , Regional Express, Sky Airlines, Virgin Australia.
Osprey Transporter Carryon 44 vs. Tom Bihn Brain Bag: which should you pack?
The Tom Bihn Brain Bag carries 14L more than the Osprey Transporter Carryon 44 (22L vs. 36L), while the Osprey Transporter Carryon 44 is the lighter pack at 0.9kg (vs. 1.3kg). For carry-on flexibility, the Osprey Transporter Carryon 44 fits 75% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tom Bihn Brain Bag; if you want to travel lighter, the Osprey Transporter Carryon 44 is the better call.