Adidas makes over 400 million pairs of shoes every year.
Manufacturing that many shoes requires a lot of resources.
But constantly creating new materials isn't great for the environment.
So Adidas is turning to a different source.
Experts predict that in 30 years, there will be more plastic in our oceans than fish.
And one study estimates that 90% of seabirds have consumed some form of plastic waste.
All that pollution on beaches and in the ocean is harmful to both marine life and humans.
So Adidas is trying to stop some of that plastic before it reaches the ocean.
In 2015, Adidas partnered with the environmental organization Parley for the Oceans.
Their goal?
