I know that everyone seems to love those harness gizmos, but I've gotta say that after playing with them for a couple of years, I hate'em. Getting them on and off is a PITA, especially when wearing bulky clothing. If used in warm or hot weather, I find that they plaster your shirt down aroung your torso and cause a lot of sweating, as they restrict the air flow through your clothing.
I think a much better solution is a single, narrow strap, not the wide type that is so often recommended. You put this over one shoulder and under the opposite arm, with the binocular resting on your chest. When you get the length adjusted correctly for your build, the binoculars rest comfortable in whatever position you put them. If you're going through thick brush, you can slide them down so that they are under your arm, against your ribs, or even all the way around to the small of the back. This protects the binoculars from just about anything, even if you are low crawling, but you can still slide them back into viewing position instantly. Best of all, you can slip into or out of this type of rig very easily and quietly.
Just my $0.02.
