Basic change. The design of this version of nike react element 55 began with a "back-to-the-base" approach whose insights were then applied to a computational design used to map pressure points specific to those who walk long during the day, according to designer darryl matthews. The lightweight upper and the soft and durable foam under the foot, have been reconstructed to ensure an exceptional experience, step by step. Graphic elements on the upper that recall the computational design process. Wavy design lines with laces that recall legendary running models like nike internationalist.