Heated vest in four-way stretch with integrated heating system in the back. Its low volume makes it ideal as a mid-layer. Made from wind- and water-repellent material with effective breathability. Provides maximum comfort and mobility with elastic seams. Effectively wicks moisture and dries quickly. Fleece lining in collar and pockets. Machine washable at 30 °C. Material: 84% nylon, 16% spandex. Lining: 100% polyester. Package contents: 1 Heat Vest 1.0 Men.