Adidas’s newest shoe is the Futurecraft Biofabric. Its upper is made from biofabricated spider silk.

The faux spider silk comes from AMSilk, a German biotech company. Like real spider silk, it boasts more tensile strength than traditional polymers. It also requires no fossil fuels to produce.

the Futurecraft Biofabric looks a lot like a modern athletic shoe—albeit one Midas lightly touched. The open-knit upper has a golden sheen, and it connects to Adidas’s trademark Boost sole.

Adidas says the shoe is 15 percent lighter than one made from traditional polymers

AMSilk creates that Biosteel textile by injecting genetically modified silk proteins into bacteria, and then fermenting it. That process creates a powder substrate, which AMSilk spins into yarn. That becomes Biosteel.

AMSilk also created an enzyme solution that would let users dissolve their own shoes at home, in the sink. It comes in a little packet, mixes with water, and needs only a few hours.

This is Adidas's next step towards sustainability—a shoe that can dissolve and rinse (safely) right down the sink.