Women's New Balance® FuelCell Rebel v5: Unbelievably lightweight and flexible! Your updated Women's New Balance FuelCell Rebel v5 running shoe is an airy and responsive powerhouse ready to take your run to the next level. The FANTOMFIT upper keeps things breezy, while the gusseted tongue ensures a locked-in fit. Thanks to the PEBA midsole with FuelCell technology, you get increased energy return that propels you forward with every step. The sculpted midsole provides a bold underfoot feel, and the colorblocked design gives your FuelCell Rebel v5 a sleek, modern look.