This is the first-generation Vaporfly. Among the successors, up to the current version 4, the first and second generations are very well-regarded models. There is dirt on the right toe from running on an all-weather track (see photo 4). I decided to sell these after organizing my shoes. The running distance is about 20km. #spikes #marathon #trackandfield #ekiden #running #shoes #SuguruOsako #Nike #Adidas #proelite #Vaporfly #Alphafly #Aeroswift