Combat overpronation in the New Balance Fresh Foam X 1540v4! Designed with ROLLBAR technology in the midsole, this running shoe offers rear foot movement control for 5Ks and beyond. Enjoy the perfect blend of comfort and stretch in the engineered knit upper. Feel eco-friendly softness with every stride on the Fresh Foam X midsole made with Bio EVA foam. If you're looking for support mile after mile, choose the New Balance Fresh Foam X 1540v4! Shoe Technology Engineered knit upper provides comfort and flexibility Lace closure delivers a secure fit Fresh Foam X with Bio EVA adds eco-friendly cushioning to every step ROLLBAR Technology offers rear foot movement control Ndurance lightweight solid rubber outsole provides reliable traction 4mm drop