I will pack my base layers and wear a layer that i will take of and change into dry layers at my stand. Doing all that was said: go in really early, slow walk in, change at base of my tree using scent wipes and spray. One place were I hunt there is a 200 yard climb straight up the mountain to get to my stand. No matter how u slice it or how cols I'M sweating bullets when I get there. Sweaty layers have to come off moisture wicking or not. You will never stay warm.