What do you guys usually wear under your jacket and pants? And do you use shell jacket or something thicker? I'm going to skii in place where is going to be around -15 celsius or 5 degrees fahrenheit.
Shit is expensive but after having tried everything I keep going back to these brands. It is worth the investment. Having a good base layer gives more margin of error with the layers on top.
If it is going to be -15C I will either use a down jacket directly over the base layer OR a medium insulated jacket with an extra layer underneath (e.g., an Oakley shirt). I'll do shell jackets if it is warmer than 10C.
If it is going to be -30C I will go for insulated ski pants and a down jacket all the way.