[DRW]

The most obvious, but perhaps also the most overlooked, criterion in fin selection is a comfortable fit. So far as I am aware, there are three national standards for fins (German, Malaysian, Russian). The earliest one, from the Federal Republic of Germany (DIN 7876), concentrated exclusively on sizing specifications, not only foot length but also foot width.

I sometimes get the impression when reading messages on freediving and scuba forums that a few fashionistas choose fins because of the brand name and not because they match the dimensions of their feet. They are prepared to put up with short-term cramps or blisters and to risk possible long-term tendon damage because they have to be seen wearing the "coolest" pair of fins on the market or the beach.