Answer:
I am bought by the yard but worn by the foot
I cannot be burned in fire or drowned in water. What am I?
Break me and I am better, immediately set and harder to be broken again. What am I?
I soar without wings I see without eyes. I've traveled the universe to and fro. I've conquered the world yet I've never been anywhere but home.
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?