Nike Alphafly 3 "Eliud Kipchoge"

Returned to running after a 40 year break. Six months in I decided to run a marathon on five days notice. I got these because they are supposed to reduce fatigue and make recovery faster. I ran sub-4 at age 57 with six months of training and a five day taper. The next day I had no problems running six miles. Nineteen days later I ran a half in these and set a post-high school PB in the mile, 2 mile, 5K, 5 mile, 10K, 15K, 10 mile and half. In these shoes, I run like a different person.

People will look at you from the noise of the shoes , very very noisy on the ground

I've run in several pairs of Nike Vaporfly Next%, but decided to pay the add'l $25 to try these this time around. They are significantly higher (i.e. a thicker sole), which is not a problem for me since I don't tend to twist ankles, but be careful if you do. They don't have a tongue, unlike the Next%, and the one-piece stretchy top is a fairly tight fit to get on, although it is comfortable once you do. They were quite noisy - lots of squeaking when I run, but I expect that will moderate as they get broken in. I haven't raced in them yet, but they feel good on workouts, although different from the Next%.