Twisted X Women's CellStretch Active ecoTWX Blend85 ecoTWEEDCellStretch Active blends comfort, sustainability, and everyday performance so you can move smarter, feel better, and go further. ecoTWX fabric upper made from recycled plastic bottles that uses and overage of 13 bottles per pair Blend85 footbed is made from 85% recycled foam ecoTWEED lining made from recycled plastic bottles Compression molded EVA midsole CellStretch technology utilizes cells in the forefoot and heel to provide superior cushioning