Jacquard woven upper material: Improves airflow to help your feet keep cool. The heel stabilizer: Helps support the foot and create a more balanced stride. Gusseted tongue wing fit system: Improves the midfoot fit and reduces tongue sliding. FF BLAST TURBO cushioning: Improves compression and creates a responsive feel underfoot. FF BLAST PLUS cushioning: Provides lightweight impact absorption and a responsive rebound. Colour: red