The Feel of Floating. You’ll feel like you’re floating with this premium neutral shoe. A refined woven upper with 31% more stretch looks amazing and expertly adapts to the foot, while MIZUNO ENERZY Core continues to offer incredible amounts of energy return and soft cushioning. The Wave Sky 6 also features even more sustainable materials compared to Wave Sky 5, including a recycled polyester upper, shoelaces, mesh lining and more. You can experience the supreme softness and the smoothest of runs in the superbly refined Wave Sky 6.