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