I'm trying to help a friend, she has a condition called Raynaud's that causes her to lose circulation in my extremities when I get cold. This is very, very painful. She's looking to find a pair of reasonably attractive boots that will keep her warm in the winter. She lives in Kingston, ON and Ottawa, ON, so these boots have to be good until -40 below or even colder. She is looking to spend no more than $150 USD or $200 Canadian. She is considering a pair of Emus or Uggs. Which is better for warmth? She says she is hesitant to buy a pair of either due to their fad factor. Feel free to link. Thanks!