How Does Kevin Garnett's Hood Work? [Update]

The Celtics got beat down by the new-look Cavaliers yesterday and also retired Paul Pierce’s jersey. His old Celtics running mate Kevin Garnett was in attendance, and—oh my God what is going on with this hood:

And lest you think this is some sort of optical illusion, here is a minutes-long video of the hood in action:

It’s taped, right? He has to be taping it.

Update (4:06 p.m.): In a video clip from last month, Garnett explains that it is the grain of his head stubble that keeps the hood in place:

I’m not sure if I believe him!