éLace-up closure. ForEverFoam at heel for optimal durability. Molded EVA sockliner hugs the arch for ultimate support. IGNITE foam midsole for high-rebound cushioning. EverTrack high abrasion resistant rubber at outsole for durability in high-wear areas. Additional thickness in the heel on both medial and lateral sides of the shoe for additional support for side to side movements and high intensity workouts.é