Icon has come out with another vest shown below. It's made of 1.4mm leather and has a back protector, but no reflective tape. Cost is about $215.
It's another option to consider.
As I mentioned in a previous post I wore a bring orange jacket much of last year. There were many times when I was out riding and a car came up a stop at an intersection or driveway and stopped, rolled a few foot or two, then stopped again. I'm assuming that they didn't see me at first or at least it didn't register right away. I have no way of knowing how much of this was due to my high visibility but my experiences of being cut off or having cars pull out in front of me was considerably less than I was lead to believe it would be.