The key features here are that the upper uses the ankle-high shape and Flyknit fabric familiar from Nike's football boots. To put it in non-technical language, it's like wearing a very grippy sock ...

Flyknit, found on shoes like the Vaporfly and Invincible 3, as well as Nike soccer cleats and some basketball ... In contrast to the ultra-thin uppers found on the Vaporfly and Alphafly, it ...