The newly updated Mizuno Wave Creation 18 brings runners an excellent fit and high end performance. Maximum cushioning allows for comfort on longer runs without the addition of unnecessary weight. Neutral runners will enjoy a smooth control with every stride. Upper: New and improved upper material for superior fit and breathability. Padded tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit. Mesh provides ventilated flexibility. Synthetic overlays add lightweight support.Midsole: Mizuno Wave Technology® disperses impact forces away from the foot for progressive, tunable support and lightweight, compact response. U4ic midsole delivers optimal shock attenuation, durability and a superior ride. Removable insole.Outsole: Durable rubber outsole allows for longer wear in high impact areas and supplements traction at heel strike.