Men"s New Balance 624 Cross-Trainer An iconic versative trainer Leather and mesh upper for breathability and durability Injection Molded EVA midsole EVA pockert in the heel for enhanced heel cushioning ABZORB midsole-a blend of cushioning and compression set features with DuPont Engage and isoprene rubber for the ultimate ride Softer durometer insert and midsole Increased flex grooves in forefoot to maximize natural flexibility Non-marking rubber outsole for maximum durability