Mizuno - WOMEN'S WAVE HORIZON 5 SHOEStylish, comfortable and supportive. These athletic sneakers check all of the boxes. Mizuno Enerzy Foam has higher reactivity and more elastic quality than the previous running EVA technology U4ic and U4icX. A lighter, more cushioned iteration of U4ic that provides a softer underfoot feel for a smooth transition. Found in Wave Enigma, Wave Inspire, Wave Rider and Wave Prophecy. U4icX Strobel Durable Plate. Durable carbon rubber for extended wear. Made