The Fieldsheer powered by Mobile Warming heating technology Phase Plus heated hoodie is the full-zip variation of our popular Phase heated hoodie with the addition of Bluetooth control. The Phase Plus heated hoodie is a full-zip hoodie design with the integration of our Mobile Warming technology heating system. The Phase Plus heated hoodie is made from 70% cotton and 30% polyester fleece that keeps you warm when you need it. The Phase Plus heated hoodie has a comfortable and soft hood, with adjustable drawstrings, for extra warmth on a cold night. The Phase Plus heated hoodie includes 2 large hand pockets with plenty of room for your phone or other items. The Phase heated hoodie is powered by Mobile Warming Technology 7.4-volt heating system, the same that is our men's heated jackets. There are 3 heating zones, one on the back and 2 on the chest, focusing heat to critical areas that keep your core warm.