Suspect the 3M "bra" is 3M packing tape, but what do I know.

I bought my Novarra bike on the theory that since it was relatively cheap at $879 it wouldn't pain me to see it get scratched up by bike racks. Well, not so much. It's just so.... shiny and new. So I did a partial 3M bra, and used clear packing tape on the right side of the frame tubes and fork where they contact the racks. Works fine so far.