You either tighten your boots or binding straps too much. Cold feet come from lack of circulation. I doupt that still boots exist that aren't warm enough if you don't cut off your circulation.
Cutting off circulation is a big issue for me. I like my boots tight and fasten bindings tight as well. Could never find the sweet tightening spot with laced boots. Now I've double BOA boots, so bit tighter, bit loser, again bit tighter adjustment on the fly is no problem anymore. Down at the lift station, if feet are numb from overtightening, it's one movement of the hand to open the BOA and let circulation flow freely.
The average human has one breast and one testicle ~ Des McHale
Jones Flagship/Solution/Mothership, Ride Farah, Volkl Savvy Rocker
Spark Afterburner, Burton Lexa LTD, Ride Fame, Burton Escapade