The mizuno wave rider 20 running shoes are designed to ensure maximum comfort and protection around your feet at all times the trainers feature a u4ic cushioned insole that ensures cushioning under the foot and ensures any shock is absorbed to relieve your joints from any stress a mesh panelled upper ensures that air can circulate around the foot to keep it both dry and fresh and ready for action at all times features u4ic cushioned midsole x10 outer sole smoothride stability wave