I use an older version of the Hunter Safety System brand vest type harnesses. It is going on 10 seasons old. One of my good buddies uses an older "Seat-of-the-Pants" harness. He likes his. I can recommend these two brands.

My HSS has a few pockets that come in handy ... and is "hunter orange/cammo reversible. It did not get in my back when I used a compound.

I doubt any will be "comfortable" if you have to hang for any length of time.

If I am not mistaken, here in Alabama for 2013-14 there were 4 deaths by fall from tree stands reported ... no harnesses. No telling how many non-fatal injuries and close calls were not reported! For whatever reason there is still a lot of hunters down this way not using a safety harness. Beats me why?