ASICS Men's GEL-Antares 2 Running Shoe 100% Synthetic and mesh Rubber sole California Slip Lasting provides stability and comfort Removable sockliner accommodates medical orthotics Rearfoot GEL Cushioning System attenuates shock during impact phase and allows for a smooth transition to midstance Trusstic System reduces the weight of the sole unit while retaining the structural integrity of the shoe AHAR high abrasion rubber is placed in critical areas of the outsole for exceptional durability