RooSense LLC is developing an integrated wearable fabric to monitor sweat electrolyte levels to prevent illness and injury. There is a huge financial and physical cost for athletes that do not have proper electrolyte levels. Electrolytes are salts that are naturally part of body fluids. When an athlete sweats, electrolytes are lost through the sweat. If electrolytes are lost too quickly, the body does not have the ability to restore them as rapidly as they were lost. But drinking water isn’t enough, and too much water can further dilute your electrolyte levels. Sports drinks contain electrolytes such as chloride, sodium, and potassium to help replenish what was lost through sweat. Introducing electrolytes back into the body helps keep dehydration from occurring. Improper electrolyte levels can lead to cramping, dizziness, fatigue, and in extreme circumstances death such as in the unfortunate incident at the Cleveland marathon this past year. In fact, up to 20% of participants that start an endurance event do not finish due to improper electrolyte levels. An athlete’s hydration levels vary based on diet and weather so a “one-size-fits-all” hydration plan doesn’t work. The solution to this is a real-time monitor for electrolyte levels in sweat. The RooSense hydration monitor is a fabric sensor that can determine electrolyte concentration in real-time. Unlike its competitors, the sensor can be seamlessly integrated directly into clothing/gear that athletes are already wearing. An app that accompanies the sensor can tell athletes what to drink, how much to drink and when to drink it. No lab tests, no guessing, just on the go hydration information when athletes need it most.