Comfortgo Boys Velcro Air Cushion Running Shoes Tennis Basketball Athletic Sneakers (Little Kid/Big Kid) Synthetic, mesh and textile Imported PHYLON and rubber sole Adjustable hook-and-loop straps with fixed elastic lace for easy on/off Air cushion sneaker with mesh/textile upper featuring mesh lining and anti-microbial treatment for comfort, dry fit and breathability Air cushion midsole with multi-texture outsole for grip, shock absorbance, slip resistance, good stability, support and traction Heel measures approximately 0.78" 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.