Try this for your feet...and don't laugh...

- layer 1 = knee-high pantyhose (yes, I know...but who's gonna see 'em).

- layer 2 = polypropylene sock liners.

- layer 3 = thick, soft wool or wool blend outer socks.

Then a pair of boots...your choice, keeping the terrain and conditions in mind.

This has worked very well for me while in 2 feet of snow....hope it helps you some. Good luck.