cold hands and feet have become a big problem with me as I get older. I use the Bass Pro marino wool socks over a poly pro liner sock and 800 gram boots. If things are really cold say 10* I put on the 2000 gram packs. For my hands I use the 18 hr body warmers in my coat pockets with light weight gloves. It's no fun when you get cold. I've bow hunted in -30* wind chills many years ago, I don't think I could do it now although the cross bow would make it easier.