New Balance FuelCell Propel v4 Running Shoes New and experienced runners alike will appreciate the underfoot ride and innovative technology packed into the New Balance FuelCell Propel v4. 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. Engineered Mesh Upper Constructed with an engineered mesh, the New Balance FuelCell Propel Running Shoe wraps the foot in breathable comfort whilst providing a secure, locked-down fit. The lightweight, breathable jacquard forefoot allows cool air to flow through the shoe removing uncomfortable heat build-up and regulating internal temperature to create a healthy environment that feet can thrive in. The no-sew overlays add to the lightweight breathability, whilst also ensuring resistance against abrasion and irritants from the shoes. Finally, a traditional lace closing system is integrated into the upper which locks the mid