The adidas x Sean Wotherspoon SUPEREARTH "Black" features an upper and liner crafted from 100% recycled polyester. The sockliner is made from leftover Ortholite material, with a cover made from cork, one of the most highly renewable and eco-friendly resources on the planet. If that wasn't sustainable enough for you, the outsole is composed of natural rubber from trees, with 10% waste rubber content and 90% sustainably sourced natural rubber.