Running Shoes
From Bulbapedia, the community-driven Pokémon encyclopedia.
Running Shoes are a piece of equipment developed by the Devon Corporation. They were introduced in Pokémon Ruby and Sapphire and used in all standard Generation III and Generation IV games.
Once the player receives them from his or her mother, shortly after the beginning of the game, they allow him or her to run instead of walk, by holding the B button and pressing the D-pad in any direction. While there are a few places cannot be run through, such as very tall, thick grass or deep snow; most caves and routes, as well as some buildings, will allow for running inside of them. In Generation IV, all buildings allow running, but deep snow is added in which one can sometimes run but never bike.
The speed at which players can run is about twice as that of walking, yet slower than the Mach Bike or Acro Bike.
In the manga
In Pokémon Special, Ruby has a pair of Running Shoes, given to him by his father, Norman, for his birthday. They, like the in-game ones, allow Ruby to run far faster than normal.
