Gobi Heat Women's Basecamp Heated Base Layer Pants - By combining lightweight and flexible material with conductive thread heating elements, Basecamp focuses on the large muscle groups in the legs to provide the most warmth. Two heat zones in the thighs, and two in the glutes. Keep your legs warm this winter. 3-zone heating - 2 in the thighs and 1 large zone in the glutes 8 hour battery life with lightweight, comfortable lithium-polymer battery(Low - 8hrs, Med - 6hrs, High - 4hrs) One-touch LED controller with 3 heat settings - low(113° F), medium(131° F), and high(140° F) Conductive thread heating technology Flexible polyester/spandex blend Style: WBCP2-ON