Our approach for the Gt-1000 13 shoe was to modernize the shoe with more support and elevated cushioning. This design features a 3D Guidance System to help increase stability for a more balanced stride. The shoe is reimagined with PureGEL technology and Flytefoam cushioning in the midsole. This helps create a lightweight feel with softer landings so you can experience more comfort in each step. Upper - Textile, Sole - Other Materials.