There have been a couple of discussions of different types or roll up garment bags like this, and I have a coworker that swears by his. I just purchased a standard rolling garment bag, carry on size, and am pretty happy with it for what I need.
Oh, it’s really convenient that it has the roll up garment bag right on it like that! That would really come in handy. I can’t stand having to get the iron out the second I arrive in a hotel.