TUNE YOUR SHOE IS A PART OF THE PRODUCT CURREXSOLE - NATURAL PERFORMANCE INSOLES. THE CURREXSOLE INSOLES ARE HIGH PERFORMANCE SPORTS INSOLES, DESIGNED SPECIFICALLY FOR SPORT SPECIFIC FOOTWEAR. DEVELOPED BY SPORTS SCIENTISTS IN GERMANY, FIVE MODELS ARE AVAILABLE, EACH INDIVIDUALLY TAILORED TO INDIVIDUAL SPORTING REQUIREMENTS. TO ENSURE OPTIMUM FIT AND PERFORMANCE EACH MODEL IS DESIGNED IN THREE ARCH PROFILES. THUS, EACH CURREXSOLE ENSURES DYNAMIC TRACTION BETWEEN THE FOOT AND SHOE - ENHANCING PERFORMANCE, WHILST PROTECTING MUSCLES AND TENDONS AGAINST OVERUSE INJURIES.