From the Guardian article linked above:
Bryce Dyer, an associate professor in product development at Bournemouth University, said: “We’ve gone from a sport where essentially all you needed 20 years ago was a pair of trainers and a vest, to where the footwear has essentially been weaponised quite substantially over the last five or six years.”
Enter the Adizero Adios Pro Evo 1: Adidas claims these shoes are 40% lighter than any previous racing super shoe they have created, and contain a “first-of-its-kind forefoot rocker, placed at 60% of the length of the shoe”, which is “lab-tested to trigger forward momentum and improve running economy”.
Without sawing apart one of these trainers – which has been impossible until now, as they do not go on sale until Tuesday – experts say it is difficult to know whether the technology they contain is truly groundbreaking, or an incremental improvement on what has gone before.