The left shoe contains an NFC device through which, in case of emergency, rescuers can immediately identify the injured person and get important information about them, such as vital stats and clinical data (blood type, allergies, current medications, diseases, etc.).Through an app, athletes can enter all their personal and medical data and upload relevant documents (ID, driver's license, etc.). It can also store the numbers of people to contact in an emergency, with whom you may share your location when sending an SOS.