NEW BALANCE. WX857WB2. WOMENS NEW BALANCE 857V2. WHITE LIGHT BLUE.If you re looking for superior stability along with total comfort the New Balance 857v2 cross-training shoe is for you. An evolution of the 850 series the 857v2 has a powerhouse of stability features like ROLLBAR technology to help reduce rear-foot movement. And for comfort from start to finish this women s trainer offers an ENCAP midsole and N2 cushioning for shock absorption comfort.