My secret trick to keeping my feet warm year round is pairing the rain boots with thick wool socks. (rockpaperglam.com)
I have worn those winter hiking boots only 3 - 4 times this season so far, sometimes for warmth because I can wear thick wool socks with them. (joy.lookfab.com)
I ordered my true size and still have room for thick wool socks thankfully! (solesociety.com)