HotHands Heated Mittens from HeatMax are constructed of tightly woven fleece with 40 grams of Thinsulate insulation. The mitten caps have pockets to hold HotHands 2 warmers for up to 10 hours of added heat. The mittens have a warm knit glove liner that is exposed when the mitten cap is folded back. This allows officers to complete tasks while still affording some protection from the cold. When folded back, the mitten cap is held in place by a strong magnet to keep it out of the way.