Scarf Neck Warmer The Thermafur Scarf from Techniche is so easy to use, just wrap around your neck or chest for warming relief from the cold. The Thermafur scarf is so soft and made of 100% Poly fleece. Each scarf has 3 built in Body warmer pockets, where the air activated Heat Pax go into. With each scarf you will receive 3 of the heat pax''s that will give you up to 20 hours of relief. Additional Heat Pax can be purchased at an additional charge. Heat Pax Body Warmer measures 3 1/2 x 5.