ASICS Men's Gel-DS Trainer 18, Flash Yellow/Black/Red, 13 M US 100% Synthetic and fabric Imported Rubber sole Heel measures approximately 1" Platform measures approximately 0.75" Weight: 9.1 oz Impact Guidance System Heel Clutching System Propulsion Trusstic creates tension as the foot enters the propulsion stage DuoMax Support System WET GRIP Outsole