New Balance Women's Running Shoe FuelCell - Model WFCXCS4. The New Balance FuelCell WFCXCS4 is a running shoe designed to deliver high performance and advanced comfort. Featuring FuelCell technology in the sole, it ensures responsive energy return and lightweight cushioning, ideal for fast runs and intense workouts. The breathable mesh upper provides excellent ventilation and support, while the snug structure promotes a stable and secure fit. The modern and dynamic design combines functionality and style, making this shoe perfect for everyday use. The FuelCell WFCXCS4 is the ideal choice for runners seeking performance, speed, and comfort in every step.