These heated gloves have flat, removable battery packs on the back that are slim enough to tuck under elastic cuffs on parkas or coats, and are lightweight so as not to impede manual dexterity. Fully lined with Thinsulate for breathable warmth, each glove requires four AA batteries to power its integral heating element. Convenient low/high/off power switch. The low-heat setting will heat gloves for up to eight hours and the high setting for up to six hours. The gloves have non-slip palms and finger pads, and include an elastic cinch cord to keep out snow and ice. Imported. Black. Sizes Medium or Large. (7 oz.)