While Kanye West is worried about people 3D-printing shoes at home, his contractor Adidas believes the technology will play a major role in the future of footwear. (West designs the Yeezy shoe and clothing line for the Three-Stripes brand.) To show this, Adidas today introduced Futurecraft 3D, a running shoe made with a 3D-printed midsole which can be tailored to your foot -- down to the cushioning needs. While this is a conceptual prototype, the company does emphasize it's still a real statement of intent, noting it has developed proprietary 3D printing tech to deliver the product in the future. "Imagine walking into an Adidas store, running briefly on a treadmill and instantly getting a 3D-printed running shoe," Adidas says, "this is the ambition of the Adidas 3D-printed midsole."