What is the clear strap on the Thor Sentinal chest protector for?

just picked up the sentinal but there is like a hanging clear plastic ruppery strap hanging behind. what on earth is that for?What is the clear strap on the Thor Sentinal chest protector for?
so you dont need the back piece on. u can take it off (the plastic strip or backpiece) by unscrewing the screws at the top of the shoulder pieceWhat is the clear strap on the Thor Sentinal chest protector for?
It is used if you take the back off the chest protector and run it with just the front.
read the safety directions on how to wear it!
to hang it up in the closet or wherever

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