Underseat Pro vs Underseat 20L
Same fabric and build. The difference is which airline sizer you need to pass.
Comparison chart
 Underseat Pro 25L |  Underseat 20L | |
|---|---|---|
| Type | Personal item | Personal item |
| Best for | Up to a week with only a personal item | Ryanair, Wizz Air and weekend trips |
| Dimensions (in) | 17 x 13 x 7.5 | 15.7 x 11.8 x 7.9 |
| Dimensions (cm) | 43 x 33 x 19 | 40 x 30 x 20 |
| Volume | 25L | 20L |
| Weight | 2.4 lb (1.1 kg) | 1.9 lb (0.86 kg) |
| Laptop | Up to 16 in laptop and 12.9 in tablet | Up to 14 in laptop |
| Within limit on | 7 of 16 airlines | 9 of 16 airlines |
| Price | $189 | $149 |
| Shop the Pro | Shop the 20L |
What's different?
Underseat Pro 25L
- More room: five more liters and a clamshell opening.
- Bigger laptop: fits up to 16 inches plus a tablet.
- Best for US budget fares with an 18 x 14 x 8 inch limit.
Underseat 20L
- Strict sizers: built to 40 x 30 x 20 cm.
- Lighter: 1.9 lb (0.86 kg) against 2.4 lb (1.1 kg).
- Lower price: $40 less than the Pro.
What's the same?
- Water-resistant build: recycled 420D nylon with a PFAS-free finish and coil zippers.
- Comfortable straps: padded shoulder straps, mesh back panel and sternum strap.
- Trolley sleeve: both ride on a rolling suitcase.
- Lifetime warranty on defects in materials and workmanship.
Still unsure? Check your airline or take the quiz.