Frankly, it is not clear which model is purchased to the extent the title is vague and minimalist description. There are the artic model (comfort -1 ° 5 ° limit extreme -14 °) extreme artic (0 / -5 /?) Extreme artic II (-5 / -11 / -29) artic extreme ultra II (-9/15 / -34). So with prices that overlap from one model to another and very light description: careful not to err
