The GEL-Contend 7 sneaker is designed with tons of high-tech features, including gel cushioning that provides excellent shock absorption, an engineered mesh upper that improves airflow, an Ortholite sockliner that offers excellent in-step comfort, flex grooves in the outsole that provide flexibility, synthetic stitching on the overlays that improves support, an Amplifoam midsole that provides durable cushioning, and guidance line technology that provides a more consistent stride. Sizing: True to size.