Piorama Delta vs. Alpha One-Niner Whitley Backpack
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| Piorama Delta | Feature | Alpha One-Niner Whitley Backpack |
|---|---|---|
| Storage | ||
| 2 | Compression | N |
| 42L | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 16in | Laptop | 16in |
| 3 | Main Compartments | 3 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| 900D Nylon | Available in:X-Pac X42, 500D, 1050D Ballistic Nylon |
Alpha One-Niner Whitley Backpack
| Capacity | 20 L |
| Weight | 1.2 kg |
| Dimensions | 47×28×15 cm |
| Airline fit | 93% |
| Price | $200 |
Key differences between the Piorama Delta and Alpha One-Niner Whitley Backpack
- Compression straps: 2 on the Piorama Delta; No on the Alpha One-Niner Whitley Backpack.
Both have: passport pocket, backpack straps, sternum strap, 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. 5 accept only the Piorama Delta, and 2 accept only the Alpha One-Niner Whitley Backpack.
Only the Piorama Delta fits
Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska.
Only the Alpha One-Niner Whitley Backpack fits
Air Niugini, Great Lakes Airlines.
Piorama Delta vs. Alpha One-Niner Whitley Backpack: which should you pack?
The Alpha One-Niner Whitley Backpack carries 4L more than the Piorama Delta (16L vs. 20L), while the Piorama Delta is the lighter pack at 1.2kg (vs. 1.2kg). For carry-on flexibility, the Piorama Delta fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Alpha One-Niner Whitley Backpack; if you want to travel lighter, the Piorama Delta is the better call.