The Asics Dynablast for men are neutral running shoes. These shoes have a knit upper. This gives the shoes breathable capabilities so your feet don't overheat when you run. The midsole convinces with the innovative FlyteFoam blast technology. This advanced foam is designed to give you the best possible energy return. The midsole provides cushioning and responsiveness without weighing the shoes down. The outsole is made of AharPlus rubber. This sturdy rubber ensures durability and excellent grip. The outsole works with the FlyeFoam material to achieve a higher energy return.