Bellroy Transit Workpack Second Edition vs. Alpha One-Niner SERT, PENUMBRA 2.0 Backpack
Two carry-on travel backpacks, compared spec for spec.
Bellroy Transit Workpack Second Edition
| Capacity | 20 L |
| Weight | 1 kg |
| Dimensions | 53×38×16 cm |
| Airline fit | 60% |
| Price | $199 |
Feature by feature
| Bellroy Transit Workpack Second Edition | Feature | Alpha One-Niner SERT, PENUMBRA 2.0 Backpack |
|---|---|---|
| Storage | ||
| N | Compression | 2 |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | optional |
| removable | Sternum Strap | removable |
| Inside | ||
| 16in | Laptop | 16in |
| 3 | Main Compartments | 5 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| Baida Nylon | Available in: X-Pac X42, 500D, 630D HD |
Alpha One-Niner SERT, PENUMBRA 2.0 Backpack
| Capacity | 21 L |
| Weight | 1.5 kg |
| Dimensions | 47×30×14 cm |
| Airline fit | 93% |
| Price | $255 |
Key differences between the Bellroy Transit Workpack Second Edition and Alpha One-Niner SERT, PENUMBRA 2.0 Backpack
- Compression straps: No on the Bellroy Transit Workpack Second Edition; 2 on the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack.
- Hip belt: No on the Bellroy Transit Workpack Second Edition; Optional on the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack.
- Main compartments: 3 on the Bellroy Transit Workpack Second Edition; 5 on the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack.
- Water bottle pockets: 1, side on the Bellroy Transit Workpack Second Edition; 2, side on the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack.
Both have: passport pocket, luggage passthrough, backpack straps, sternum strap, 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. 113 accept both. 0 accept only the Bellroy Transit Workpack Second Edition, and 62 accept only the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack.
Only the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack fits
Aerolineas Argentinas, Air Asia, Air France, Air India, Air Macau, Air Mauritius, Air Niugini, Air Wisconsin, AirAsiaX, Alaska Airlines, Allegiant Air, American Airlines, Avianca , Bahamasair, Bangkok Airways, Belavia, Biman Bangladesh, Boliviana de Aviacion, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, CommutAir, Conviasa, Copa Airlines, Delta Airlines, Dragonair, Etihad Airways, EVA Air, flybe, Garuda Indonesia, Hawaiian Airlines, Hong Kong Airlines, Indigo, InselAir, Jet Airways, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, LATAM , Liat Airlines, Malaysia Airlines, Mango, Oman Air, Qantas Airways, Qatar Airways, Regional Express, Republic Airways, Royal Jordanian, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, Trans States, United Airlines, Vietnam Airlines, Virgin Atlantic, Virgin Australia.
Bellroy Transit Workpack Second Edition vs. Alpha One-Niner SERT, PENUMBRA 2.0 Backpack: which should you pack?
The Alpha One-Niner SERT, PENUMBRA 2.0 Backpack carries 1L more than the Bellroy Transit Workpack Second Edition (20L vs. 21L), while the Bellroy Transit Workpack Second Edition is the lighter pack at 1kg (vs. 1.5kg). For carry-on flexibility, the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpha One-Niner SERT, PENUMBRA 2.0 Backpack; if you want to travel lighter, the Bellroy Transit Workpack Second Edition is the better call.