I bet half the reason people even run the Boston Marathon in the first place is to get these silver blankets.  Although blowing in the wind, the silver blankets kind of looked like capes and the people who finish look like superheros to me.

Witness:

Above, our lone warrior in repose.  Below our warrior is having cape tangling issues:

Here, our marathoner looks like he is about to get airborne:

So do these guys in the second photo.  These next two have their capes under control.  Good for them: