Two weeks ago, this new shoe was three plastic water bottles. After ground-up bottles are turned into recycled filament fiber and delivered to a factory, a San Francisco-based startup uses a proprietary process to 3D-knit the fiber into a seamless, essentially waste-free shoe. The knitting process takes just six minutes.
Rothy’s, the startup making the shoe, wanted to make better footwear than they saw on the market. But as they tried to figure out how to also make the shoe more sustainable, they realized that they could dramatically reduce the materials that are normally thrown out in construction.