New Balance Women's WR768 Running Shoe 100% Synthetic and mesh ACTEVA is 12% lighter than standard midsole foam with DuPont Engage for exceptional durability ABZORB provides a superior blend of cushioning and compression set features with Dupont Engage and Isoprene rubber for the ultimate ride NLOCK is an integrated lacing and webbing system that provides optimal fit, support and security PHANTOM LINER is seamless lining