The article mentions that it's an English chain.
The name is a pun on the fashion term "prêt-à-porter" which is often used in English. See https://www.net-a-porter.com/ for another example of a brand that riffs on the term without being French.
The name is a pun on the fashion term "prêt-à-porter" which is often used in English. See https://www.net-a-porter.com/ for another example of a brand that riffs on the term without being French.