Gregory Border Carry-On 40 vs Lowe Alpine Sirac Plus 40
The Gregory Border Carry-On 40 is 40L and 1.8kg4lb; the Lowe Alpine Sirac Plus 40 is 40L and 1.77kg3.9lb. The Lowe Alpine Sirac Plus 40 is 0.03kg0.1lb lighter. The Gregory Border Carry-On 40 fits the carry-on limit of 4 of 36 major airlines and the Lowe Alpine Sirac Plus 40 fits 0; under the seat, 0 and 0 of 26.
| Spec | Gregory Border Carry-On 40 | Lowe Alpine Sirac Plus 40 |
|---|---|---|
| Price | $240 | n/a |
| Volume | 40L | 40L |
| Weight | 1.8kg4lb | 1.77kg3.9lbBest |
| Carry-on compliance | 11%Best | 0% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 56×37×23cm22×14.5×9in | 75×36×28cm29.5×14×11in |
| Laptop | 15" | n/a |
| Compartments | n/a | 2 |
| Bottle pockets | 1 | 2 |
| Compression straps | 0 | n/a |
| Opening | Clamshell | Top-loading, Lidded top opening plus zipped front and lower entry, with an internal divider |
| Warranty | 50 years | n/a |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | Yes | No |
| Rain cover | No | Removable |
| MOLLE | No | No |
| Hip belt | Hideable | Yes |
| Sternum strap | Yes | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | 600D recycled polyester ripstop with PFAS-free DWR | Recycled fabrics |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Gregory Border Carry-On 40 | Lowe Alpine Sirac Plus 40 |
|---|---|---|---|
| British Airways | Carry-on | Fits | Too big |
| easyJet | Carry-on | Fits | Too big |
| Frontier Airlines | Carry-on | Fits | Too big |
| Southwest Airlines | Carry-on | Fits | Too big |
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Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.