think about it.
you've got the tiny amount of heat that your hands produce (that you are trying to maintain) inside the glove vs. freezing air moving at road speed outside the glove.
it's impossible for any glove that offers you enough dexterity and "feel" to compete against that cold moving air.
eventually (and probably, too soon) your hands are gonna' get cold.
this is the only real answer........
http://www.revzilla.com/motorcycle/g...-heated-gloves
of course, there's always heated grips with HippoHands