I layer synthetic, fast-drying wicking performance as first layer of underwear. Then if need long underwear will use a wool or wool blend. Camo shirt on top of that. Fleece vest then the outer coat.
Depending on weather, will skip the long underwear, the vest. Or, will go with a parka rather than outer coat. My outer layer is water-resistant if will be around wet vegetation or expect rain or snow.
I always wear two layers of socks. The first layer is thin and synthetic wicking material. out sock is heavier wool blend and thickness varies on weather. I make sure each sock goes on with no wrinkles, especially on the underside and toes of the foot since any bump in the sock will promote hotspots and most likely create blisters.
Wear mittens that have a folding back flap if very cold, otherwise gloves. Baklava if windy and cold to protect face.
Use a fleece cap if cold, ball cap if merely sunny.