My coldest weather gear consists of the following:

Feet: wicking sock, heavy wool sock, 1000gr boots
Legs: Polypropylene pants, fleece sweat pants, insulated bibs
Torso: Polypropylene sweater, fleece vest/hoody, insulated parka
Head: stocking hat with light balaclava or just a heavy fleece balaclava
Hands: light jersey gloves, hand warmer strapped to waist with hot hand in it

I've hunted in Iowa with snow blasting me and temps around zero and stayed plenty warm.