Adidas is describing the launch, which it partnered with singer and actress Willow Smith on, as being in “beta.” It says it has a lot to learn, such as how many times over the same material can be used. If the quality degrades each time, it might need to use plastic that’s been recycled repeatedly only in certain components of a new shoe.

It’s not releasing the shoe to the general public just yet, either. It has given the sneaker to 200 of what it calls “leading creators” from across the world’s major cities. Adidas “will challenge them to run, return the shoes and share feedback on their experience, ahead of the second-gen drop.” What it gathers from that testing will shape how it approaches a bigger commercial release that it currently has planned for spring 2021.

Looking for more in-depth coverage of the fashion industry? Sign up for a free trial of Quartz membership, and read our premium field guide on how fashion and luxury are getting redesigned.

📬 Sign up for the Daily Brief

Our free, fast, and fun briefing on the global economy, delivered every weekday morning.