ASICS Women's GEL-Frantic 5 Running Shoe 100% Synthetic and mesh Rubber sole California Slip Lasting offers stability and comfort Removable Sockliner accommodates medical orthotics AHAR High Abrasion Rubber is placed in critical areas of the outsole for exceptional durability Rearfoot GEL Cushioning System attenuates shock during impact phase and allows for a smooth transition to midstance Feather Last enhances forefoot stability Trusstic System reduces the weight of the sole unit while retaining the structural integrity of the shoe