Control the Heat. Own the Hunt.Built for mid-to-late season whitetail hunts, the ThermShift Men&';s Heated Vest combines nano-carbon heating, 60g 3M(TM) Thinsulate(TM), and a low-profile layering fit. Add heat when you need it, adjust as conditions change, and stay focused through the long wait.Even Heat Where It Matters1-to-4 nano-carbon heating spreads even, targeted warmth across key core areas for consistent comfort in the cold.Three Levels. Your Call.Three heat settings and one-button control let you adjust warmth as temperatures and activity change.MORE THAN ACTIVE HEAT.60g 3M(TM) Thinsulate(TM) provides lightweight baseline warmth, keeping ThermShift working as an insulating mid layer even when active heat is off.MOVE WITHOUT THE BULK Stretch side panels and a streamlined fit move naturally with your body while keeping warmth close without unnecessary bulk.Power for the Long WaitThe included 10,000mAh power bank supports extended hunts, while a hidden control helps reduce visible light in low-light conditions.Backed by a 1-Year Warranty.