Shoes have improved by leaps and bounds in the last 5 years.
Even the entry level stuff is much much better.
I am using a pair of 35€ Decathlon shoes now, that are simply better than the 150€ Mizuno´s or Asics´s I previously rocked.
I bought them as walkabout shoe, now I have ran about 900km on them.
The main improvement is the foam, before it was either had hard/controlled or soft/all over the place.
Now every brand has soft/controlled shoes.
These don't really go faster, but it has become far easier to do more miles without pain and injuries - thus allowing overall gains.
(, Wed 30 Jun 2021, 7:21, Reply)