Adi Dassler’s handmade spikes helped Jesse Owens win four golds in Berlin, then the German cobbler’s family workshop split into Adidas and Puma after a feud that divided a Bavarian town

In August 1936, a German shoemaker named Adolf “Adi” Dassler arrived at the Berlin Olympics with a pair of handmade track spikes and a business instinct that would help shape modern sports marketing. Jesse Owens wore Dassler spikes at the Games and won four gold medals, a breakthrough that Puma’s own company history describes as part of the Dassler brothers’ international breakthrough.

The moment became bigger than a shoe sale. Owens won the 100m, the 200m, the long jump, and the 4x100m relay in Berlin, in front of a Nazi regime that had hoped the Games would project Aryan supremacy. The shoes came from a small family workshop in Herzogenaurach, Bavaria, run by two brothers whose names would later sit on opposite sides of one of the most famous business feuds in Europe.

Twelve years later, those two brothers would never work together again.

The split created two companies that still define global sportswear. Adi built Adidas. His older brother Rudolf built a company first called Ruda, then Puma. The clean corporate version sounds simple, but the human version is messier: two brothers, one factory, one town, one war, two wives, and a rivalry that turned a family argument into a commercial border.

The workshop on Adi’s mother’s laundry room floor

The Dassler story began in Herzogenaurach, where Adi and Rudolf registered the “Gebrüder Dassler Schuhfabrik” in 1924 after starting from their family home. Adidas’ own company history says Adi began in his mother’s laundry room and focused on providing athletes with better equipment.

Adi was the craftsman, obsessive about fit, stitching, and how a shoe behaved under pressure. Rudolf was the salesman, louder and more outward-facing, the kind of operator who could turn a technical product into a relationship. For a while, the division worked.

By the mid-1930s, the Dasslers were already supplying athletes. Owens’ success in Berlin lifted their workshop from a provincial maker into a name known far beyond Bavaria. It also revealed something Adi understood early: if the right athlete trusted the shoe, the shoe could carry a story around the world.

Then the war came, and with it the pressure that tends to expose every weakness in a family business. The factory was pulled into wartime production. Rudolf served away from home, while Adi remained closer to the plant. By the time Rudolf returned after the war, the partnership had changed in ways neither brother could repair.

The air raid, the wives, and the story nobody can fully prove

The most repeated story in Herzogenaurach concerns an air raid in 1943. According to the usual version, Adi and his wife Käthe entered a bomb shelter where Rudolf and his wife were already sitting. Adi made a remark that he later said referred to Allied bombers, but Rudolf believed it was aimed at him and his family.

That detail has been repeated for decades because it feels almost too neat: one sentence, one misunderstanding, one family split. But family feuds are rarely that tidy. The shelter story may explain the shape of the legend more than the true origin of the fracture.

There were other grievances. Rudolf believed Adi had helped keep him away from the business. Adi believed Rudolf had tried to damage him during the postwar denazification process. Their wives were also said to have disliked each other, which meant the factory dispute had a domestic echo every time the family gathered.

When the brothers finally divided the company, the split was not just emotional. It was operational. Puma’s company timeline says Rudolf founded “Schuhfabrik Rudolf Dassler (RUDA)” in 1948, began operations on June 1, and registered the Puma brand later that year.

Why family businesses break in ways friendships often do not

The Dassler split is a business story, but it is also a sibling story. Sociologist Geoffrey Greif has written about the strain points in adult sibling relationships, including ambiguity, ambivalence, family roles, and the way old family patterns can follow people into adulthood.

That framework fits the Dassler story without turning it into therapy content. The brothers were not simply co-founders who disagreed about strategy. They were siblings whose childhood roles, marital alliances, wartime suspicions, and business identities all became tangled together.

Sibling relationships also have a peculiar duration. Greif notes that a sibling bond often lasts longer than relationships with parents, partners, children, and friends. That length can be a gift when the relationship is healthy, but when it turns sour, there is more time for grievances to harden into identity.

Adi and Rudolf became a high-stakes version of a familiar pattern: the quiet maker and the loud salesman, each convinced the other misunderstood his value. Once the business split, neither brother had to resolve that story. Each could build a company that proved his own version of events.

A town that divided itself

After the split, Herzogenaurach became more than a town with two sportswear companies. Wired later described Herzogenaurach as the “town of bent necks”, a nickname tied to the habit of looking at someone’s shoes before deciding which side they belonged to.

The image stuck because it captured how intimate the rivalry became. In a company town, a shoe was not just a shoe. It could signal where your parent worked, which football club you supported, which pub you drank in, and which side of a local story you had inherited.

The brothers themselves never reconciled in any meaningful public way. Rudolf died in 1974. Adi died in 1978. They were buried in the same cemetery in Herzogenaurach, but the legend of their distance remained part of the town’s commercial folklore.

That is what makes the Dassler feud so durable as a business case study. It shows how a family conflict can become self-renewing once it is attached to payrolls, buildings, customers, and public pride. Every product launch becomes another argument. Every victory in the market becomes proof that one brother had been right all along.

The strange afterlife of the feud

The rivalry did not end with the founders. Adidas and Puma competed for athletes, teams, technologies, and cultural relevance for decades. Each company helped build the modern idea that a sporting-goods brand could sell not only equipment, but identity.

Puma’s later history with Pelé shows how aggressively the rivalry moved into sports marketing. Puma’s own timeline says Pelé wore Puma King boots at the 1970 World Cup, where Brazil won its third title and Pelé was named Player of the Tournament.

Adidas built its own mythology through football, Olympic track, tennis, boxing, and street culture. The company’s 1949 registration, the three stripes, the 1954 World Cup boots, and later athlete partnerships all turned Adi’s workshop logic into a global commercial language: make the athlete better, then let the athlete make the brand famous.

Seen that way, the feud did more than create two companies. It helped create a sportswear economy built around rivalry, endorsement, visibility, and belonging. Fans did not just buy shoes. They bought sides.

What the river is really about

The Aurach is not a grand river. It is narrow enough that the physical distance between the two sides of the Dassler story can feel almost absurd. That is part of why the feud still has force.

The worst business conflicts are not always between people who are far apart. Sometimes they are between people who remain close enough to see each other’s windows, employees, delivery trucks, and victories. Proximity keeps the wound fresh.

Adi and Rudolf were separated by company names, factories, and loyalties, but they were still bound by a shared surname and a shared origin story. Neither could fully escape the other because each company made the other more meaningful. Adidas needed Puma as a rival. Puma needed Adidas as the brother it had to beat.

Jesse Owens could not have known any of that in 1936. He knew only that the shoes fit, felt light, and helped him run and jump into Olympic history. The brothers who made those spikes would spend the rest of their lives proving that a shoe could carry more than an athlete. It could carry a grudge, a town, a family name, and eventually, two global brands.