“If we take our highest performance running shoe, making that entirely from circular recycled materials, it won’t have the same functional properties still,” Miltenburg said in the stor ...

An animation of the story of Cinderella. The Fairy Godmother is trying to decide on the best material to make shoes from. She considers fair testing and keeps the three materials the same size.

“Most shoes can be coaxed into a better fit, but materials matter,” Vargas says. As for which materials work best, experts ...

From there the different components that make up a shoe – like rubber, foam and plastic – are separated by machines using heat and friction. Those materials are then shredded into small pieces ...

Narrator: But after a year of trial and error, Reebok found the best combination of sustainable materials for its running shoe. The eucalyptus tree bark is refined into a yarn to make the upper ...