Fresh Foam X midsole foam with approximately 3% bio-based content delivers the most cushioned New Balance Fresh Foam X experience for incredible comfort, perfect for long base endurance runs where you're gathering kilometers without your pace being such a critical factor. The relatively shallow drop (4 mm) rewards good running technique. This model can also be recommended to people who want proper cushioning for walks, be they on the long or short side. In walking use, the Fresh Foam More suits all levels of fitness. - Relatively wide model - Bio-based content is made from renewable resources to help reduce carbon footprint - Medium support midsole - The midsole allows for a fast transfer from the landing to the pushing phase - Heel stack: a whopping 44 mm - Front stack: a still pretty darn impressive 40 mm