Big Sneaker Brands Promised a 3D-Printed Revolution. These Are the Disrupters Making It Happen

3D-printed sneakers are gaining traction, with startups like Zellerfeld and Hilos leading the charge. While major brands like Nike and Adidas have experimented with the technology, smaller companies are successfully producing and selling 3D-printed shoes, potentially revolutionizing footwear manufacturing with personalized, on-demand production.