Mizuno AW14 Womens Wave Hayate Trail Running Shoes XTATICRIDE - Means a shoe build that adapts to its surroundings and works actively with the body. Dynamotion Fit - Provides a fit that moves the way you do, actively working with your foot throughout the gait cycle. AIRmesh - Maintains high quality breathability throughout the life of the shoe. Allowing the foot to stay cooler and more comfortable. U4IC Midsole - Constructed from a material that is 30% lighter and provides a smoother cushioning ride than other midsoles in the Mizuno range. Wet Traction - Bidirectional outsole rubber synthetic leather breaks through water, improving grip in all conditions