This is like the one I have
http://www.cjmas.com/index.php?main_...oducts_id=2511
I haven't found a pic yet that's like the one I tried on.
I was thinking maybe this one would be OK
http://www.fitness-shop.com.au/popup_image.php?pID=150 - there's a crop top, which would hold everything firm and securely in place, I guess?