ASICS Men's Gel-Contend 4 Running Shoe 100% Synthetic Imported Rubber sole Shaft measures approximately Low-Top" from arch Rearfoot 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.