I used to double bind with two regular binders. It worked rather well, but I wasn't as large as some of you (they seemed huge to me, of course). I used two Cotton Concealers from Underworks. They are longer binders with a nice hem at the bottom. Less of a problem with rollups. However, they aren't quite as powerful as other binders. I wore them instead of the killer binders because I was allergic to synthetic fabrics (the T seems to have cured that). I would turn the bottom binder inside out so that the 90% cotton shell was next to my skin.
I suppose you could try a Cotton Concealer over a more heroic binder, but I suspect that an extra large chest would not be impressed and that you would get...shifting. What about a rash guard? Some guys say they have had success with one.
I have always thought that it would be nice to have a sort of fabric frame for under the binder. Something that surrounds the horrible growths above and below--and that has some fabric for in between the growths. The fabric above would create the illusion that there isn't a hump on one's chest, and the fabric on the bottom would do something similar but also absorb some sweat. I used to get pretty sticky underneath my squashed moobs.
However, I don't see such a scheme working unless it's part of the binder, and that would probably create all sorts of problems and add a layer of unwanted complexity to the binder, making it harder to put on and take off and maybe even messing with the structural integrity.
Do you plan to have top surgery, NoAlternative?
