Description New and experienced runners alike will appreciate the underfoot ride and innovative technology packed into the New Balance FuelCell Propel v4 Permafrost. Combining classic elements from the Propel v4 with a DWR treated water-resistant ripstop upper and HydroHesion rubber outsole, this running shoe is built to withstand the harsh winter elements and provide traction on wet, slippery surfaces. Featuring a thick FuelCell midsole combined with a TPU plate, this running shoe is designed to maximize comfort and traction to help keep you moving at top speeds.