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.
Jones Flagship 158, Ride Farah 153, Jones Solution wmn 156, Rad Air Jewel 159.5, Jones Mothership 156
Ride Fame, Burton Escapade, Spark Afterburner
The average human has one breast and one testicle ~ Des McHale