Tigsit Assefa: The £400 single-use Adidas shoe that is smashing marathon records | The Independent
Revealed: The science behind Adidas' £400 single-use 'super shoe' that helped Tigist Assefa smash the women's marathon world record in Berlin | Daily Mail Online
Adidas Berlin - Navy / Mens Shoes Sneakers Expedited / GY7446 | eBay
What Adidas Shoe was Tigist Assefa Really Wearing in Berlin?