Fit & Design: Weather-resistant fleece & cozy fleece lining provides warmth, comfort, and versatility Strategically placed heating elements use ultra-fine fibers for optimal heating performance An integrated heating system located on the back of the hand Heating panels encapsulated with a thermal seal provides additional durability & moisture protection Technology: A layer of advanced Thinsulate insulation Additional Details: Two ActionHeat heated fleece gloves Two power packs (batteries not included)