Children's shoes generally use environment-friendly materials, free of toxic chemicals, non-heavy metal tanned leather, environment-friendly PU, natural cotton mesh, etc., and must have the characteristics of breathability, bacteriostasis, environmental protection, non-fading, softness, and easy cleaning. Children in the stable stage are curious about all the new things in nature. They are good at imitating and brave in exploring. Especially, their sensitivity to color is unmatched by adults. Therefore, children's shoes are very particular about color selection.