Why are some cleats longer than others?

Baseball spikes are longer than soccer spikes because baseball players have to get more traction while running on dirt or turf while soccer players only have to worry about playing on grass. Also, shorter cleats allow soccer players to stay closer to the ground, keeping the player's center of gravity low and helping him maintain his balance. Baseball cleats sometimes come with steel cleats rather than the usual rubber kind. This is because certain baseball fields are harder to run on than others. Soccer cleats, meanwhile, do not allow the option of steel cleats because all surfaces are grass and because of the high injury risk of accidentally kicking another player.