My Mom always told me to dress in layers when the weather got cold, but I certainly don't remember her mentioning to make sure my batteries were fully charged. All that may change now that WarmX has introduced its line of electrically heated clothing, which promises to keep you toasty in a way those little chemical heater packs never quite could. By weaving a special electrically conductive polyamide thread directly into the cloth, WarmX has avoided the thick wires and bulkiness of prior attempts at heated garments, while a microprocessor in the control module/battery regulates the temperature at your choice of three different levels. The rechargeable lithium-ion batteries provide between 2 and 5 hours of toastiness depending on the setting, which should be just long enough to get you through a Packers home game at Lambeau Field. The first WarmX products are undershirts for men and women, with more attire coming soon to cover… uh, other parts of the body. Currently, you can buy them only through the company's online shop based in Germany, at least until a U.S. distributor warms up to the idea of selling them here. — Michael Trei