Please refer to our handy Size Guide and follow the instructions. We have attempted to provide customers with the best tools for measuring your child’s correct shoe size in order to accurately make online orders, but we stress that our sizing instructions do not guarantee your shoes will be the perfect size. We understand that every child’s foot is different and measuring for children’s school shoes can sometimes go wrong – even with our guides. So if you receive your children’s shoes and the size isn’t perfect just Contact Us to let us know that you wish to exchange your children’s shoes and as soon as we receive your return we will happily send you one replacement pair, free of carriage charge to UK addresses. However, we regret we cannot cover the postage costs involved in returning the shoes to our warehouse.