Comfortgo Kids Vivid Summer Running Shoes Girls Boys Athletic Sandals Sneakers (Little Kid/Big Kid) Synthetic Imported Synthetic sole Adjustable hook-and-loop straps with fixed elastic lace for easy on/off Sturdy mesh uppers optimizes breathability Mesh lining enhances the fit and manages moisture to keep dry and comfortable. EVA midsole at heel and dynamically adapts to every step and stride with the ultimate soft feel underfoot for shock absorbance, good stability, support and traction. Please view the shoe size chart in product images to help you choose the size you need, refer to the foot length part: CM(centimeter) and inches.