The Seven-League Boots are a recurring artifact in numerous European fairy tales, and the boots themselves allowed one to travel seven leagues (roughly five kilometers or three miles) per step. The boots aren’t very well known, and they are featured primarily in the French fairytale Hop-o’-My-Thumb.
In the story, Hop-o’-My-Thumb is a small boy who is extremely intelligent. When his parents abandon him and his brothers, he becomes the (very tiny) man of the house. When an ogre decides to make a meal of the brothers, Hop-o’-My-Thumb steals their magical boots to escape and make his fortune for his family.