Patented carbon fiber non-metallic heating element built-in front insole to keep your feet super warm in cold weather. Powered by AA batteries to heat up within 5 min. and heat leasting up to 420 min. Perfect for winter outdoor activities likehiking, ice-fishing, hunting, skiing, camping and motorbiking etc. Also good for person in poor blood circulation. With Far Infrared function F.I.R.
PETATECH INTERNATIONAL CO., LTD. 6F., No. 101, Zhouzi Stl., Neihu District 114, Taipei, Taiwan, R.O.C.
