Nike’s version: https://media.wired.co.uk/photos/606d9e525113453af5734514/ma...

If you Google Alphafly, Vaporfly, and Kipchoge, you’ll get all sorts of analysis on this type of shoe.

Cloud shoes are shoes with a very high level of cushion (38mm is race legal limit) and support. Some have carbon fibre plates for extra bounce. Popular models from Saucony, On, Hoka, Nike, etc. It is now estimated that majority of amateur marathon runners are wearing them. This is in stark contrast to 15 years ago when minimalist and lightweight racing flats were in vogue (typically around 20mm stack for endurance events).

If you walk into a runnning shop now, you are probably leaving with a pair of cloud shoes - that’s all some shops sell.

Hokas, not sure if there are any copycat competitors in the space, there probably are.