The Wave Ultima 10 is designed to give you the smoothest running experience because we’ve thought of everything. From a U4ic X heel wedge & Wave technology cushioning, to a dual compound midsole & blown rubber forefoot for the softest toe-off, this is stress-free running. Even the upper is made from fewer parts for a lighter, more seamless construction, whilst a premium PU sockliner provides a supremely comfortable fit from the word go. Now go run in comfort. New Wave to provide a high level of cusioning & response U4ic X heel wedge which takes cushioning to a high level of comfort Strategically placed reinforcements for harmonious fit Premium PU Sockliner for optimal fit & comfort