Salvatore Ferragamo dedicated his life to the search for a secret: the shoe that fits well. When he began studying human anatomy in the United States he found his first clue to the problem, in the distribution of the body’s weight over the joints of the foot.

"I discovered he wrote – that the weight of our bodies when we are standing erect drops straight down on the arch of the foot. I constructed my revolutionary lasts, which support the arch, make the foot act like an inverted pendulum".