"Does it fit under the seat?" is the most common question before a flight with only a small bag included, and it has two different answers: one about size (does the bag fit the airline's limit?) and one about your fare (does your ticket include that bag?). Here we answer the first: we compare the external size of four Piquadro products with airline limits updated to 27 October 2026. For the second, check your fare and your airline's conditions before you leave.
Table of contents
- How to read the comparison
- The four products and their size
- Product × airline matrix
- When to choose another model
- Frequently asked questions
- Conclusion
- Sources
How to read the comparison
- External size: height × width × depth in centimetres, including the full footprint, handles and wheels included. Expandable products are measured closed: do not expand them before boarding.
- Comparison: the three product measurements, sorted from largest to smallest, must each fit within the corresponding airline limit. The bag may be rotated; it cannot be squeezed.
- Result: "under the seat" if it fits the small-bag limit; "overhead bin" if it fits only the larger cabin-bag limit; "over the limits" otherwise. For Delta Air Lines, Air China, Qatar Airways, Ethiopian Air and Aeroflot the comparison is made against the overhead cabin-bag limit.
- Updates: airline limits are updated to 27 October 2026. Airlines change them: before you leave, check your airline's website and your fare.
The four products and their size
| Model | Capacity | Net weight (empty) | External size (H × W × D) | Laptop sleeve | Material | Lock |
|---|---|---|---|---|---|---|
| Water-Resistant Cabin Travel Backpack for 14" Laptop (Corner 2.0) | 30 L | 1.163 kg | 40 × 30 × 20 cm | 14" | fabric | — |
| Convertible Cabin Trolley Backpack with TSA Lock (Corner 2.0) | 16.5 L | 2.054 kg | 40 × 30 × 20 cm | — | fabric | removable TSA |
| Water-Resistant 14" Laptop Backpack (Corner 2.0) | 15.5 L | 1.123 kg | 40 × 32 × 16 cm | 14" | fabric | — |
| Hard-Shell Cabin Luggage with TSA Lock and USB-C (PQ-Light) | 31 L | 2.445 kg | 55 × 40 × 20 cm | — | polycarbonate | TSA with USB-C and USB ports |
Water-Resistant Cabin Travel Backpack for 14" Laptop (Corner 2.0)
Water-resistant fabric backpack from the Corner 2.0 line: external size 40 × 30 × 20 cm, 30 L, 1.163 kg empty, a sleeve for laptops up to 14" and expansion. It fits under the seat for Ryanair, easyJet, Wizz Air and Emirates; for British Airways, Iberia, Air France, ITA Airways and Lufthansa it exceeds the under-seat limit and goes in the overhead bin, as with Delta Air Lines. Find it here: Water-Resistant Cabin Travel Backpack for 14" Laptop (Corner 2.0).
Convertible Cabin Trolley Backpack with TSA Lock (Corner 2.0)
Water-resistant fabric trolley backpack with the same external size (40 × 30 × 20 cm), but with wheels, handle and a removable TSA lock: 16.5 L and 2.054 kg empty, almost twice the wheel-less backpack. In the matrix it has the same results as the Water-Resistant Cabin Travel Backpack for 14" Laptop (Corner 2.0). Find it here: Convertible Cabin Trolley Backpack with TSA Lock (Corner 2.0).
Water-Resistant 14" Laptop Backpack (Corner 2.0)
Water-resistant fabric work backpack: 40 × 32 × 16 cm, 15.5 L, 1.123 kg, a sleeve for laptops up to 14". Two extra centimetres of width compared with the previous model change the result: it fits under the seat for easyJet and Emirates, but not for Ryanair, Wizz Air, British Airways, Iberia, Air France, ITA Airways and Lufthansa, where it goes in the overhead bin. It is the best seller of the four, and it shows why external measurements must be compared one by one. Find it here: Water-Resistant 14" Laptop Backpack (Corner 2.0).
Hard-Shell Cabin Luggage with TSA Lock and USB-C (PQ-Light)
Hard-shell polycarbonate cabin trolley from the PQ-Light line: 55 × 40 × 20 cm, 31 L, 2.445 kg empty, TSA lock with USB and USB-C ports, 10-year warranty. It is an overhead-bin bag: it fits the limit of Ryanair, easyJet, Wizz Air, British Airways, Iberia, ITA Airways, Lufthansa, Air China, Ethiopian Air and Aeroflot; it is over the limits for Air France, Delta Air Lines, Qatar Airways and Emirates. Find it here: Hard-Shell Cabin Luggage with TSA Lock and USB-C (PQ-Light).
Product × airline matrix
Where each product travels, based on its external size and on airline limits updated to 27 October 2026. The table tells you where the bag goes, not whether it is included in your fare.
| Airline | CA6638C2OW | BV6270C2OW | CA6464C2OW | BV4425PQL |
|---|---|---|---|---|
| Ryanair | under the seat | under the seat | overhead bin | overhead bin |
| easyJet | under the seat | under the seat | under the seat | overhead bin |
| Wizz Air | under the seat | under the seat | overhead bin | overhead bin |
| British Airways | overhead bin | overhead bin | overhead bin | overhead bin |
| Iberia | overhead bin | overhead bin | overhead bin | overhead bin |
| Air France | overhead bin | overhead bin | overhead bin | over the limits |
| ITA Airways | overhead bin | overhead bin | overhead bin | overhead bin |
| Delta Air Lines | overhead bin | overhead bin | overhead bin | over the limits |
| Lufthansa | overhead bin | overhead bin | overhead bin | overhead bin |
| Air China | overhead bin | overhead bin | overhead bin | overhead bin |
| Qatar Airways | overhead bin | overhead bin | overhead bin | over the limits |
| Ethiopian Air | overhead bin | overhead bin | overhead bin | overhead bin |
| Aeroflot | overhead bin | overhead bin | overhead bin | overhead bin |
| Emirates | under the seat | under the seat | under the seat | over the limits |
When to choose another model
- If you want a soft cabin trolley: the water-resistant fabric Slim 4-Wheel Water-Resistant Cabin Suitcase (Corner 2.0) has the same external size as the PQ-Light (55 × 40 × 20 cm), 32 L and 2.811 kg empty: it fits the same limits.
- If you want leather under the seat: the Leather 15.6" Laptop Travel Backpack with Trolley Strap (Tebe) measures 40 × 30 × 16 cm, 18 L and 1.763 kg: same height and width as the Corner 2.0 backpack, less depth and fewer litres.
- If your airline is not listed: the airlines in the table are the ones you find in the compatibility table on each product page; for others, compare the product's external size with your airline's limits.
- If your fare has a weight limit: the net weight in the table is for the empty product; the final weight depends on what you pack.
- If you need to expand the backpack: the measurements apply to the closed backpack; once expanded, the footprint grows and the comparison no longer applies.
Frequently asked questions
Does "fits the limits" mean I can bring it for free?
No. It means that the product's external size fits the airline's limit for that type of bag. Whether that bag is included depends on the fare you bought and on the airline's conditions at the time of the flight.
Why do two backpacks with the same size weigh so differently?
The BV6270C2OW has wheels, a telescopic handle and a lock: for the same external footprint the net weight goes from 1.163 to 2.054 kg and the capacity drops from 30 to 16.5 litres.
Do the measurements include handles and wheels?
Yes: Piquadro product measurements include the full footprint, handles and wheels included. Expandable products are measured closed.
How up to date are the limits?
They are airline limits updated to 27 October 2026. Airlines change them, so always check their website before you leave.
Conclusion
For the small under-seat bag with the strictest rules (40 × 30 × 20 cm) every centimetre counts: the CA6638C2OW backpack and the BV6270C2OW trolley backpack meet them, the CA6464C2OW work backpack does not, by two centimetres. For the overhead bin the PQ-Light BV4425PQL fits the limits of most airlines in the table, but not all. In every case your fare decides what is included: check it before you leave.
Sources
The limits in this guide come from each airline's official carry-on baggage page, checked on 27 October 2026:
- Ryanair: carry-on baggage
- easyJet: carry-on baggage
- Wizz Air: carry-on baggage
- British Airways: carry-on baggage
- Iberia: carry-on baggage
- Air France: carry-on baggage
- ITA Airways: carry-on baggage
- Delta Air Lines: carry-on baggage
- Lufthansa: carry-on baggage
- Air China: carry-on baggage
- Qatar Airways: carry-on baggage
- Ethiopian Air: carry-on baggage
- Aeroflot: carry-on baggage
- Emirates: carry-on baggage
External dimensions in centimetres, height × width × depth. Weight of the empty product.
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