Design inspired by NB tennis athlete Coco Gauff. Made to help boost your agility training, the NB FuelCell Shift TR features a springy FuelCell midsole for an ultra-responsive and comfortable ride through high-intensity drills. These innovative New Balance FuelCell Shift TR, women's training shoes in Blue / Violet / Pink also feature a state-of-the-art FitWeave Lite upper with no-sew overlays for a lightweight feel that delivers a supportive, locked-in fit. FuelCell foam delivers a propulsive feel to help drive you forward. Upper features no-sew construction for a sleek fit and feel. Mesh upper for breathability and full rubber outsole. Adjustable lace closure for a customized fit.