The Adizero Adios Pro 4 features Energyrods 2.0 carbon-infused rods for a smooth heel-to-toe transition. The midsole includes a rocker point for improved running economy and a dual-layer Lightstrike Pro cushioning system. The outsole is constructed with Continental™ rubber for traction and Lighttraxion technology to reduce weight. classic fit lace-up closure textile upper textile lining and insole rubber outsole contains at least 20% recycled materials