CONTROL YOUR OWN COMFORT - The power to control heat is only one touch away in a durable built in LED controller. ALL DAY WARMTH AND CONTROL- Conductive thread heating technology and our slim 6500 mAh/7.4 volt battery allow for extended heat during longer day trips. FEEL THE HEAT IN UNDER 30 SECONDS - With powerful 3-zone heating (2 in the chest and a large zone in the back), never worry about the cold again. The most versatile jacket in the heated apparel industry, the Sahara soft-shell jacket is wind, water, and abrasion resistant and allows you to control your body temperature with three heat settings: Low, Medium, and High. Also, this jacket has three heat zones in the most effective locations, two zones in the chest and a large zone in the back.