Engineered mesh upper: Improves breathability At least 20% of the shoe's main upper material is made with recycled content to reduce waste and carbon emissions The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology FLYTEFOAM cushioning: Helps create a lightweight and comfortable feel underfoot Rearfoot GEL technology: Improves impact absorption and creates a softer feeling at footstrike The GEL-PULSE 15 shoe creates the comfort you need to keep your mind focused on your workout. Whether you're on a run or at the gym, this shoe offers good cushioning for a smooth feel.​This shoe is designed with an engineered mesh, which improves airflow to keep your feet cool. It also wraps your foot with a soft and comfortable fit.​​​Underfoot, the FLYTEFOAM cushioning is paired GEL technology to produce a soft feel underfoot.