Electric or electronic sensors for detecting extent of shoe sole wear, loss of ability to cushion and absorb shock, and the need to replace the shoe

Electric or electronic sensors for detecting extent of shoe sole wear, loss of ability to cushion and absorb shock, and the need to replace the shoe

Electronic wear indicator device, comprised of a sensor and microprocessor, wear indicator display and power source, placed in an athletic shoe during manufacture and capable of signaling extent of shoe sole wear, loss of ability to cushion and absorb shock, and the need to replace the shoe

Athletic Shoes