... insoles,TPE gel insoles,Gel polymer insoles,pu foam insoles,silicone Gel Insoles,pu insole ,gel insole ,foot care,foot massage gel ... theory was applied in the design of PU insole,which is made of high elastic PU materials. It provides a comprehensive protection ... points to recover strength and energy quickly. To apply PU materials with durable elasticity to prevent insole to be out of shape ...