M110BX - Mossy Oak® Foot Warmer Refills Display Box: Mossy Oak® Footwarmers are designed for use with the extensive line of Heat Factory warmer socks and footbeds. When placed inside sock pocket or footbed, they will generate soothing heat for up to 6 hours. Ideal for use when fishing, hunting, skiing, or sitting around the camp fire. Sold as 40 pairs/box. MADE IN THE USA.