The Therm-ic Set Heat + C-Pack 1700B Kit has full capacity to provide toasty warmth to your feet for cold runs on the slopes this winter. Enjoy winter activities to the fullest with the Therm-ic Heat Kit. Includes a set of heat elements, topcovers and 1 pair of C-pack batteries. For 17 hours, the Therm-ic Set Heat + C-Pack 1700B Kit will allow you to have worry-free comfort for all your snowy adventures! | Therm ic Set Heat + C Pack 1700B Kit