Knack Expandable Laptop Tote vs ROKA London Somerset Shoulder Bag
The Knack Expandable Laptop Tote is 18L and 0.96kg2.1lb; the ROKA London Somerset Shoulder Bag is 18.5L and 0.94kg2.1lb. The ROKA London Somerset Shoulder Bag is 0.02kg0lb lighter. The Knack Expandable Laptop Tote fits the carry-on limit of 35 of 36 major airlines and the ROKA London Somerset Shoulder Bag fits 36; under the seat, 0 and 10 of 26.
| Spec | Knack Expandable Laptop Tote | ROKA London Somerset Shoulder Bag |
|---|---|---|
| Price | $120 | n/a |
| Volume | 18L | 18.5L |
| Expands to | 26L | n/a |
| Weight | 0.96kg2.1lb | 0.94kg2.1lbBest |
| Carry-on compliance | 97% | 100%Best |
| Personal-item compliance | 0% | 38%Best |
| Dimensions | 33×50.8×17.8cm13×20×7in | 30×41×15cm12×16×6in |
| Laptop | 16" | sleeve, size not published |
| Bottle pockets | 1 | 2 |
| Opening | top zip | n/a |
| Warranty | n/a | 2 years |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | Insert sold separately | Yes |
| Luggage pass-through | Yes | Yes |
| Camera compartment | No | No |
| Material | Water-resistant 900 x 1200 denier high-twist high-density polyester, 150D antimicrobial nylon lining | 100% Cotton Canvas |
| Last checked | 2026-09 | 2026-10 |
Where their airline fit differs
| Airline | Limit | Knack Expandable Laptop Tote | ROKA London Somerset Shoulder Bag |
|---|---|---|---|
| Air Canada | Personal item | Too big | Fits |
| Allegiant Air | Personal item | Too big | Fits |
| American Airlines | Personal item | Too big | Fits |
| British Airways | Personal item | Too big | Fits |
| easyJet | Personal item | Too big | Fits |
| Frontier Airlines | Personal item | Too big | Fits |
| JetBlue Airways | Personal item | Too big | Fits |
| LATAM Airlines | Personal item | Too big | Fits |
| Qatar Airways | Carry-on | Too big | Fits |
| Volaris | Personal item | Too big | Fits |
| WestJet | Personal item | Too big | Fits |
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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.