ASICS Women's Gel-Hyper Speed 7 Running Shoe 100% Textile and Synthetic Imported Rubber sole Rearfoot GEL Cushioning System: Attenuates shock during impact phase and allows for a smooth transition to midstance. Seamless Construction: The use of seamless materials reduces the potential for irritation and friction caused by traditional stitches and seams. Perforated Sockliner: Optimizes moisture drainage and improves breathability. DuraSponge Outsole: A blown AHAR rubber compound for enhanced cushioning and durability in the forefoot. Magic Sole Outsole: Vented midsole and outsole minimizes weight and maximizes breathability.