The cushioning of the GEL-NIMBUS 25 shoe feels like bouncing on a cloud. This neutral sneaker is redesigned with new materials for smoother, more fluid runs. A soft mesh upper comfortably wraps around your foot and provides optimal ventilation. Its new mesh upper structure offers optimal flexibility and wraps around the ankle for the perfect fit and comfort. The midsole features the densest cushioning of any model offered to date. With FF BLAST PLUS ECO foam, this lightweight sneaker offers plush cushioning, and reduced environmental impact.