Even in their mother's laundry room, where they had been making sneakers since 1920, there were arguments. Here was the extrovert Rudolf, who founded the sporting goods manufacturer Puma in 1948, and there was the quiet tinkerer Adolf, who followed suit with Adidas in '49. Companions such as shoemaker Georg Hetzler shed light on the family history, namely whether the rival brothers ever saw each other again in person until their deaths in the 1970s. Sports stars such as Usain Bolt and Manuel Neuer talk about their favorite brand: "Raubkatze" and the "three stripes".