This unisex boot is designed for children ages 1 to 6 and 7 to 11 years old, with sizes ranging from EU 21-30 to 31-36. Crafted with a rubber outsole and patent leather upper, these boots are perfect for any season and feature a square heel, slip-on closure, and over-the-knee height. The comfortable insole length is determined by adding 1cm to the foot length. Please note that the US size is not standard and you should refer to our sizing chart when ordering. With a fashionable design and anti-slip feature, these shoes are ideal for casual wear, running, and outdoor activities. Remember to select a larger size to accommodate for your child's growth and for faster delivery times, these shoes will be shipped without boxes.