Hilos earned $3 million to minimise shoe production's carbon footprint.
Patented 3D printers and TPU powder manufacture modular shoe parts for company.
CEO Elias Stahl and Gaia Giladi founded Hilos (CCO, ex-associate designer at Hybrid Apparel).
From 2014 to 2017, various startups in 3D printing footwear developed, including Sols and Feetz.
Nike and Adidas led provider funding for additive R&D.
Glowforge's AI tool optimises 3D printing based on written instructions.
Portland is home to Nike, Adidas, Keen, and other shoe and 3D printing titans, including Hilos.
Stahl said Portland is ideal for product innovation and supply chain rethinking.
Former Nike COO and VP, Better Ventures, Builders VC, and XRC Labs invested.