Talk about options. If 80 grams of Primaloft Silver insulation isn't enough, a one-touch button delivers three levels of heat on demand via a built-in USB power cable in the pocket of the Torque Insulted Heated Vest (5v/2A power bank sold separately). Two heating pads on the chest and one on the upper back allows temperature adjustment from low (100deg F) to mid (113deg F) to high (131degF.) for perfect warmth in any scenario. A smooth polyester lining and Lycra binding produce a snug fit that will make you feel like you just slipped into a warm bed while the DWR-treated nylon shell repels moisture. An extended cut keeps the lower back warm. Reflective logo touch points on the front and back stand out when you're taking on the fog. The only predicament you'll have with the Torque Insulated Heated Vest is do I wear it outside or inside? Outside the vest is ideal for docking or loading, as a wind-resistant, water-resistant shell or layer it underneath you're ready for just about anything Mother Nature can throw at you.