Adidas has invented a new running shoe made entirely of a single material that uses no glue or solvents in its construction. The idea is called Futurecraft.Loop and evident in its name is the goal of creating a closed recycling loop where the user buys a pair and uses them for a few years, then returns them to Adidas for processing. They are currently in beta-testing and expected to hit the market in 2021.
More details are on the Adidas website.