These aren't just the best winter boots I've owned, these are the best boots period. I'd like to list the pros and cons, but there are no cons. These things are LIGHT and extremely flexible. Still, they are warm. With a pair of Smartwool mountaineering socks, I have worn these things outside for hours in subzero weather. With lighter socks, they are breathable enough I've worn them for 8-hour shifts bartending. These are also the most comfortable pair of boots I've ever owned, and on top of that even walking on the ice without crampons or anything, I have amazing traction.If you're not sure whether they are worth the money or not, get them, you will never want another winter boot.