Comment by icegreentea2

15 hours ago

Reviews say that they have very very good, but not record breaking energy return and shock absorption. But what they are is insanely light at sub 100g.

https://runrepeat.com/adidas-adizero-adios-pro-evo-3

For a while it was all about getting the lightest shoes, because picking up heavy shoes slowed you down. Then the energy return (pebax foam, carbon plates/rods) became the main focus because the weight didn't matter as much when the shoe was literally springy. Surely this is now going to spark a race for the optimal balance between weight and energy return.