Hydrogen wind TD outsole and hollow mid sole design effectively eliminate the heat in the shoes, The IP sole provides excellent shock absorption and stability to your feet, Light and Breathable Upper Running Shoes : The Keenly Engineered Mesh upper ensures boundless breathability that will keep your feet cool and dry, Ultra LightWeight Running Shoes *Buying Tip : Please review the size chart image in product images and compare the your size and brand Euro/UK sizes before purchasing