SyntheticImportedRubber soleRearfoot GEL Cushioning System: Attenuates shock during impact phase and allows for a smooth transition to midstance.Removable Sockliner: A sockliner which can be removed to accommodate a medical orthotic.ComforDry Sockliner: Removable sockliner that provides cushioning performance and moisture wicking for a cooler, dryer, healthier environment.