New Balance Men's M992 Running Shoe 100% Leather and mesh Lightweight and supportive Removable full-length ABZORB insert provides a superior blend of cushioning and compression set features with Dupont Engage and Isoprene rubber for the ultimate ride ABZORB SBS is an engineered, non-cellular elastomer designed to provide optimal shock absorption and no compression set C-CAP is a compression-molded EVA for superior midsole cushioning and flexibility Ndurance is a rubber compound for maximum durability used in high wear areas