Sources

Manufacturers

Where a dimension can be recommended on, it comes from here — the manufacturer's own figure, wheels and handle included.

Review publications

We cite these for quality — durability, wheels, how a bag survives two years. We don't assess any of that, and they test it properly. Where they publish a dimension we use it only until we find the manufacturer's own.

Two of these publish no dimensions at all, in roundups titled for international travel. That absence is why this site exists.

Airlines

83 of 83 airlines have had their published baggage page read at source and dated. The rest are listed but excluded from every count until someone reads them.