In contrast, 3D-printed clothes can simply be dumped into blenderlike machines that turn the plastics into powder that can then be used to print out something new. And since 3D printing easily allows for custom sizing, the process is inherently frugal with materials.

But there are plenty of challenges that must be overcome before 3D-printed apparel goes mainstream.

One is cost. Even the smallest home 3D printers run several hundred dollars. A printer capable of printing human-sized apparel is beyond the reach of individual consumers. And it takes far longer to print an article of clothing than to produce a similar article via weaving or knitting. Peleg’s jacket, for example, takes about 100 hours to print.

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