Answer:
I'm really blue but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt.
I am owned by every man, though my length differs. Their wives use me after getting married. What am I?
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths.
I need to be taken from you before you can have me.
In Paris but not in France the thinnest of its siblings.
What never gets any wetter no matter how hard it rains?