Originally Posted by phony_stark
They're very warm.
Never had a problem with them being cold...found this on the interwebz:
"Nike Vapen snowboard boots use a heat reflective material in both the shell and liner that helps retain heat and keep the cold out. This heat-reflective material is bonded to the midsole to reflect cold from entering through the sole of the boot, and to the liner to keep heat from exiting the boot."