The THERMAFUR Air activated heating jacket features a high collar, handy zippered front pockets, adjustable elastic cord at bottom and zipper closure. Air activated heating jackets deliver additional coverage and protection when and where you need it most. Features a black softshell upper and soft durable, 100% poly-fleece bottom, and sleeves to help hold in heat. Made with black poly-cotton elastic trim and a total of eight (8) built-in HEAT PAX™ Body Warmer pockets. Include eight (8) HEAT PAX™ Body Warmers (5540) that deliver steady, comfortable heat to your core for 20+ hours.