This invention is a temperature-based smart insole capable of continuously or intermittently measuring the foot temperature of the patient at one or more locations of the foot while the insole is worn. The device provides feedback to the patient alerting the individual of risk based on his/her plantar temperatures. Benefits of this device include: its ability to free the patient from the clinical setting and increase patient's confidence to be mobile, thus enhancing circulation while at the same time allowing the patient to self-monitor their feet.