Millican Fraser 18L Rucksack vs Rains Backpack
The Millican Fraser 18L Rucksack is 18L and 0.85kg1.9lb; the Rains Backpack is 18L and 0.86kg1.9lb. The Millican Fraser 18L Rucksack is 0.01kg0lb lighter. The Rains Backpack costs $30 less. The Millican Fraser 18L Rucksack fits the carry-on limit of 36 of 36 major airlines and the Rains Backpack fits 36; under the seat, 0 and 0 of 26.
| Spec | Millican Fraser 18L Rucksack | Rains Backpack |
|---|---|---|
| Price | $170 | $140Best |
| Volume | 18L | 18L |
| Weight | 0.85kg1.9lbBest | 0.86kg1.9lb |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 50×28×15cm19.5×11×6in | 50×30×12cm19.5×12×4.5in |
| Laptop | 15" | 16"Best |
| Compartments | n/a | 1 |
| Opening | Top-loading, Top lid with drawstring closure | magnetic snap flap |
| Warranty | Lifetime | 2 years |
| Organizer | No | Yes |
| 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 | Removable | No |
| Sternum strap | Removable | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | Bionic Canvas (35% cotton, 65% recycled polyester, paraffin wax impregnated, C6 DWR); 100% recycled polyester lining; aluminium buckles, leather trim | Rains signature waterproof PU-coated polyester (100% PES), 8,000 mm water column |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
Both bags pass and fail the same airline size limits.
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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.