New Balance Women's WR1350 Running Shoe 100% Synthetic and mesh ABZORB EX is a combination of New Balance's premium ABZORB foam and a peripheral pocket of non-pressurized air that is encapsulated in an engineered thermoplastic Air mesh PHANTOM LINER is seamless lining ABZORB provides a superior blend of cushioning and compression set features with Dupont Engage and Isoprene rubber for the ultimate ride Blown rubber outsole