Deerhunter's Lady Heat inner vest has an integrated HEAT system that is activated on the left side of the vest with a gentle press. The heat density is adjustable and is visible in the built-in LED light, which indicates the vest's three heat levels. After use, remove the accompanying power bank, attach the small cover to the plug and the vest is now ready to be machine washed - all without damaging the electrical HEAT system. The vest comes with a zip closure on the front, a water-repellent surface treatment and a flexible fabric in both sides, which combined with the slim elastic trim provide a high degree of freedom of movement and comfort.