Now here's something "interesting" (for some value of interesting) while we're on the subject of expensive trainers.
I think we can all agree that the Prime Minister Boris Johnson is a filthy piece of toerag. "Toerag" being exactly what it sounds like: a strip of cloth which you wound around your toes if you were too poor to afford to buy socks, as an allusion to poor people being a bunch of petty criminals. (It was ever thus, of course: petty crime is for the little people, and the ones who commit the big crimes are the ones who end up running the country.)
Nowadays, though, it is The Law that your expensive trainers must be worn commando-style, sockless, directly against your bare feet, in order to demonstrate that you are rich enough to afford to buy a new pair of trainers as soon as the ones you are wearing start to get a bit stinky.
And "no-show" trainer socks are for those of us who are too poor not to wear socks .....