It can be tough to maintain a training regimen during winter weather. New Balance's Fresh Foam X Permafrost were designed to keep you moving in the cold. The upper is crafted from a weather-resistant ripstop that keeps water and wind out. Supreme cushioning comes from the thickest Fresh Foam midsole yet, distributed across the length of the shoe and curved on the ends to encourage a smoother heel/toe transition. A wide platform adds stability and helps with comfort, while a data-informed HydroHesion rubber outsole provides dependable traction on slippery surfaces.