For cold feet I wear rubber boots. Mine are the Magellan with like 400g insulation. The lacrosse rubber boots would probably be a little better though.I just wear regular dickies work socks in the boot. Really the only part of my feet that get cold are my toes. After I'm set up and my feet start to get a little chilly I put a hot hands in a wool sock and put the sock on the outside of my boot. That puts off enough heat to keep my toes warm for at least a couple of hours. Then if its a long hunt I just add a new hot hands.