The Energy Techwear K-2006 men's sleeveless vest is the perfect balance between style and comfort. Its heating elements promote a soft even heaton the chest and at the back, making this garment ideal for enjoying your outdoor activities. Whether you are helping kids cross the street to school, or just taking a walk in freezing weather, you will appreciate the constant, gentle warmth provided by its heating elements. The reflective trims give you enhanced visibility in low light conditions while the stand-up collar helps you to stay warmth.