Design to tackle also the roughest grounds, we chose strong and light-weight materials for these The Flame Gen. X.02 runners, granting top results. �� Dynamic, reinforced jersey and rubberized sock upper for all-round protection �� Tubular laces �� Logoed puller on the heel-counter �� Rubberized, ergonomic, shock-absorbing, ultra light-weight, high-tech midsole with a contrasting colored detail on the heel �� Outsole shaped for optimal grip �� Inner lining