Running Explained - STACK HEIGHT of running shoes! Stack height is a measurement of how much material (in millimeters) is between your foot and the ground. The stack height of a shoe
![With a 50 mm stack height (pic 2), does it mean you cannot race in the new Adidas Adizero Prime X, since only -40mm is legal in road running? : r/RunningShoeGeeks With a 50 mm stack height (pic 2), does it mean you cannot race in the new Adidas Adizero Prime X, since only -40mm is legal in road running? : r/RunningShoeGeeks](https://i.redd.it/b7m0mvul3n571.jpg)
With a 50 mm stack height (pic 2), does it mean you cannot race in the new Adidas Adizero Prime X, since only -40mm is legal in road running? : r/RunningShoeGeeks
![With a 50 mm stack height (pic 2), does it mean you cannot race in the new Adidas Adizero Prime X, since only -40mm is legal in road running? : r/RunningShoeGeeks With a 50 mm stack height (pic 2), does it mean you cannot race in the new Adidas Adizero Prime X, since only -40mm is legal in road running? : r/RunningShoeGeeks](https://preview.redd.it/4sv30xul3n571.jpg?width=1080&crop=smart&auto=webp&s=5553c3a45257130b02e3a3f3b938ed7b5b2aa52d)