I needed boots for a winter vacation in Germany/Austria and also needed something that wouldn't take up too much suitcase space. These boots were perfect. We generally had temps in the 30s and 40s for most of the trip, but they dropped for the last five days and we spent the better part of a day walking around snowy paths at Neuschwanstein/Füssen with the temperature at 20º. I did double-socks for the coldest days, with the inner pair being wool. No problem whatsoever with cold feet. And my feet were never sore - we walked between five and eight miles a day for two weeks. Love the boots! I did spray them with waterproofing before I left, just in case. I have five pairs of Bzees and find them to be wonderful footwear for travel.