Deuter UP Seoul vs Rains Book Daypack Large
The Deuter UP Seoul is 16L and 0.84kg1.9lb; the Rains Book Daypack Large is 16L and 0.83kg1.8lb. The Rains Book Daypack Large is 0.01kg0lb lighter. The Deuter UP Seoul fits the carry-on limit of 36 of 36 major airlines and the Rains Book Daypack Large fits 36; under the seat, 0 and 9 of 26.
| Spec | Deuter UP Seoul | Rains Book Daypack Large |
|---|---|---|
| Price | n/a | $160 |
| Volume | 16L | 16L |
| Expands to | 26L | n/a |
| Weight | 0.84kg1.9lb | 0.83kg1.8lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 35%Best |
| Dimensions | 49×30×15cm19.5×12×6in | 43×30×12cm17×12×4.5in |
| Laptop | 15" | 16"Best |
| Compartments | n/a | 1 |
| Bottle pockets | 1 | n/a |
| Opening | Top-loading, Wide aperture fold-over zip closure | coated zip closure |
| Warranty | 2 years | 2 years |
| Organizer | Yes | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | No |
| Water-resistant | No | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | Removable | No |
| Sternum strap | Removable | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | 500D rPES, 300D PES RECYCLED | Rains signature waterproof PU-coated polyester (100% PES), 8,000 mm water column |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Deuter UP Seoul | Rains Book Daypack Large |
|---|---|---|---|
| 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 |
| Volaris | 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.