Asics' most cushioned and supportive road running shoe for women - the Kayano - is now 30 years old. In celebration of this milestone, Kayano 30 sees some innovative improvements. The new FF Blast Plus Eco midsole foam is made from lighter, more ecologically conscious materials; the increased stack high offers superior step-in comfort; and a 4D guidance system encourages a balanced and stable stride, preventing over-pronation. The improved upper offers a secure fit and great breathability.