Grams28 150 Daypack vs Nomatic Backpack (20L)
The Grams28 150 Daypack is 16.6L and 1.84kg4.1lb; the Nomatic Backpack (20L) is 20L and 1.8kg4lb. The Nomatic Backpack (20L) is 0.04kg0.1lb lighter. The Nomatic Backpack (20L) costs $379.01 less. The Grams28 150 Daypack fits the carry-on limit of 36 of 36 major airlines and the Nomatic Backpack (20L) fits 36; under the seat, 9 and 0 of 26.
| Spec | Grams28 150 Daypack | Nomatic Backpack (20L) |
|---|---|---|
| Price | $699 | $319.99Best |
| Volume | 16.6L | 20L |
| Expands to | n/a | 24L |
| Weight | 1.84kg4.1lb | 1.8kg4lbBest |
| Carry-on compliance | 100% | 100% |
| Personal-item compliance | 35%Best | 0% |
| Dimensions | 41.5×28.5×14cm16.5×11×5.5in | 47×30×14cm18.5×12×5.5in |
| Laptop | 16" | 16" |
| Bottle pockets | n/a | 2 |
| Opening | foldover flap main compartment, quick access front pocket | Clamshell, full-perimeter zip |
| Warranty | Lifetime | 5 years |
| Organizer | Yes | Yes |
| 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 | No | No |
| Sternum strap | No | No |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | Yes |
| Camera compartment | No | No |
| Material | Italian pebbled bovine leather from Gruppo Mastrotto, environment certified tanning | Water-resistant tarpaulin (75% Polyester / 25% Nylon) |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Grams28 150 Daypack | Nomatic Backpack (20L) |
|---|---|---|---|
| Air Canada | Personal item | Fits | Too big |
| Allegiant Air | Personal item | Fits | Too big |
| American Airlines | Personal item | Fits | Too big |
| British Airways | Personal item | Fits | Too big |
| easyJet | Personal item | Fits | Too big |
| Frontier Airlines | Personal item | Fits | Too big |
| JetBlue Airways | Personal item | Fits | Too big |
| LATAM Airlines | Personal item | Fits | Too big |
| Volaris | Personal item | Fits | Too big |
Add more bags to this comparison
Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.