The lightweight Lectric-vest offers a good, snug fit, realistic sizing, good looks and folds into a small, tidy package when needed. Power is provided by a simple, 19-inch battery lead and delivered through Widder's coiled electronic controller (an $81 option) rather than a standard on/off switch. Wearing a long-sleeve T-shirt beneath a standard-issue Aerostich riding suit, testing took place in a variety of conditions aboard both faired and unfaired bikes. No matter what we were riding, we found the vest's output a bit lacking. We wanted to be hot under the collar--and around our ribs and backs, for that matter--and then turn the thermostat down accordingly. In 40-degree-ish weather the vest's effect was hardly perceptible. In 50-plus and 60-plus temperatures, things got a bit toastier, especially on bikes with enveloping bodywork.