Hi Debbie, I wear compression socks which are thin and not very warm for my lymphedema so in the winter time I generally slip on a pair of bamboo stretchy socks over the top. This gives me a little more thickness and helps keep the feet a little warmer. On the really cold days when I have to be outside I also wear Hot Sockee - Neoprene Toe Warmers which keep the heat in the front half of my foot - https://www.amazon.com/Hot-Sockee-Neoprene-Warmers-Construction/dp/B076B56FPD/. There are many brands and types of bamboo socks available on Amazon but I haven't seen any locally at stores here.