I have quit hunting when it is below zero; just not fun anymore. However, I did go out like an idiot and kill a deer last year when it was 2 degrees with a 30 mph wind. I don't know what the wind chill factor was, but it wasn't pretty. Anyway, long johns, wool pants, a flannel shirt, and heavy Asbell wool on top along with a heavy wool hat, pack boots and chemical hand warmers and foot warmers made it at least tolerable. The bad part was gutting the deer, and the foot of snow on the ground didn't help. I doubt you will ever have to face similar conditions in SC, so I'm thinking that some long johns, wool pants and Asbell pullover would be more than sufficient. I am sold on wool for keeping cozy.