Sustainability Total recycled content: More than 90% recycled content in Polyester, More than 85% recycled content in Ethylene-vinyl Acetate Speedboard Speedboard for added control and speed built into the maximalist midsole. Upper 100% recycled polyester mesh upper plus knitted tongue with engineered wings for superior midfoot lockdown. Mid / Outsole Outsole: Grip rubber compound with enhanced traction pattern. Midsole: HelionTM superfoam.