Originally Posted by outsidein
In short don't get a heated vest, get a heated jacket liner instead. There is not a significant difference in price, especially when the required controller is included.
A heated jacket liner keeps the neck and the arms warm. It also can replace the insulated jacket liner in a motorcycle jacket were as a vest cannot since it is only a vest. It also provides a connection point for heated gloves if they are later added. It has a lower temperature comfort point. Finally because of the increased insulation it provides it can often be run on a lower setting than a vest and provides more even heat and is less subject to hot and cold spots.
another vote for heated jacket, not vest .. your arms gets coverage and just as important. heated gloves needs wiring that's part of heated jackets.
old style Gerbing don't have hot spot issues newer models have. preference is older heated jacket/pants with insulation. allows double duty during outdoor activities when not connected to your bike.
don't know about other brands, but old style insulated Gerbing are more functional. microwire thinner profile mates good with gloves.