In their pursuit to produce a better midsole, the engineers at Mizuno turned to nature during the design process of the Women's Wave Hitogami 2 Running Shoe. Much like water, Mizuno Wave technology reduces and redirects impact as you run resulting in a more comfortable, less intrusive running experience. The low profile U4ic midsole reduces the overall weight of the shoe by 30% compared to other Mizuno shoes for a more responsive ride that results in a better on road feel. Smoothride engineering puts flex grooves in the heel to promote a more fluid motion from heel to toe, giving you a more efficient stride. A drop of 9mm makes these shoes suitable for midfoot strikers, while the neutral support allows for natural foot motion whether you're training or blowing through mile 17 en route to a new best marathon time.