Throughout the 80s and 90s . Nike repeatedly attempted to find a design that provided maximum energy return. In 2000 . their work paid off with Nike Shox technology . which placed foam between two plates for a springy response to every step. Released in 2019 . the Shox TL 'Triple Black' maintains the heritage with a Shox outsole laying a foundation for the silhouette. Twelve Pebax plates comprise the sole . with a mesh upper that's topped by a sturdy webbed overlay . all in triple black.