It is a rider's responsibility to carry their emergency medical information.
We recommend you carry it in one or all of:
your mobile phone
an ID bracelet (such as RoadID) on your wrist
a packet about your person.
You can carry it on your iPhone using these instructions or on an Android (version 12 and above) using these instructions
Accessing emergency/medical information on someone's phone is simple: open their phone (swipe up from the bottom) and you should see some kind of Emergency (Android) or Medical ID (Apple) icon. Double click the Emergency icon, or single click the Medical ID icon.
There are more detailed instructions on how to access medical information on an iPhone or an Android.