i used to hunt in buffalo so cold weather is something i'm used to your right you have to layer and i start with a silk base layer or moisture wicking first layer i use cabelas silk weight then you have to pick your suit for the day depending on weather for rain or snow or so on then are you going to be sitting or walking and if walking you have to dress really light so you don't get to sweated up if you start sweating slow down or rest if you have time so the tricky part is packing in what you need for the day extra layers and food and so on. i pack in a wool long sleeve shirt for when i get to where i'm going and some over the boot warmers if a lot of snow on the ground. you have to experiment with what works for the conditions of the day and your own body if you are the type that can take the cold or not. i also pack in a cabelas packable rain suit unless i know for sure no rain in the forecast. i also use those big body warmers quite a bit.long winded but lot's to cover! good luck