New Balance Women's WR805 Running Shoe,White/Blue,9 D 100% Synthetic and mesh ACTEVA LITE is 24% lighter than standard midsole foam with Dupont Elvaloy and Dupont Engage for optimal compression set properties ABZORB provides a superior blend of cushioning and compression set features with Dupont Engage and Isoprene rubber for the ultimate ride LockDown Liner is an adjustable, internal liner that is integrated into the lacing to provide a custom fit and securely hold the midfoot In Mold Blown Rubber Outsole