I've gone with my AW 13 size (29) as I take the same size as the model in most clothes and he is wearing 29 and so I figure that should be okay. I expect them to be a little looser, but I also took my AW 13 size in the AW 15 mid waist, and while they're also a little looser, they still fit fine. A 28 is always a little too small for me.
Just pulled the trigger and ordered black and blue raw both in the same size as all my SS16 jeans
hope they fit the same on the waist