From ECCO, the Biom Fjuel Racer men's running shoes feature: bonded mesh upper BIOM last for outstanding walking comfort lace-up construction soft strobel insert underneath the inlay sole for enhanced cushioning comfort direct-injected polyurethane foam midsole for long-lasting cushioning low-to-the-ground sole construction that provides a natural foot position lightweight, flexible TPU outsole with rubber inserts for optimal grip Imported.