When I started doing 14ers a few years ago I picked up a RoadID.com wrist strap. It's a basic medial ID type bracelet but with pertinent information on it for rescuers. Currently I wear it whenever I ride (bike or motorcycle) go on a hike or any other adventure. A few people asked about it on the last ride so I wanted to share with all of you.
Mine has the following:
Name, year of birth
NKA (No Known Allergies)
Blood Type
Two emergency contacts
You can customize what goes into it within the space limits, handly little thing in case of an emergency I feel.
I also carry an Israeli Battle Dressing on the bike, granted most injuries will be road rash and fractures, but in case of a sever puncture/cut it could be life saving.