Companies producing orthopaedic footwear use a static model for children’s shoe production. As a consequence, children do not wear orthopaedic shoes regularly because they are not comfortable. I have studied the possibility of correcting children’s flexible feet by analyzing the dynamics of load forces between toes and heels both when walking barefoot, and when various combinations of shoes and insoles are worn. As a result, I have developed a method to design comfortable footwear which is effective in correcting asymptomatic flexible children’s feet. I suggest using the dynamical method to improve the quality of orthopaedic shoes, and working together with footwear companies, I will try to help children to prevent irreversible deformations of their feet.