Beat The Cold With These Unique Body Warmers. This Is An Innovative Technology Which Helps You Keep Warm Even In The Most Extreme Conditions Without Any Electricity Or Batteries. Just Open The Wrapper And Place The Warmer Within The Folds Of Your Clothing. It Starts Heating Up And In About 5 - 10 Mins Reaches Its Optimum Temperature . Warmee Keeps You Warm For 8+ Hours. TIP - Keep The Warmer Enclosed With The Folds Of Your Clothing At All Times For Optimum Heat