Adidas was started by Adolf Dassler in his mother's house; he was joined by his elder brother Rudolf in 1924 under the name Dassler Brothers Shoe Factory. Dassler assisted in the development of spiked running shoes (spikes) for multiple athletic events. To enhance the quality of spiked athletic footwear, he transitioned from a previous model of heavy metal spikes to utilising canvas and rubber. Dassler persuaded U.S. sprinter Jesse Owens to use his hand made spikes at the 1936 Summer Olympics. In 1949, following a breakdown in the relationship between the brothers, Adolf created Adidas, and Rudolf established Puma, which became Adidas' business rival.