Description Features and Benefits: Up to 12 hours of runtime with M12 REDLITHIUM-ION 3.0 Ah Battery Pack 3 times warmer with custom developed insulation Less than 2-minute heat up time with 40 times more heat coverage. Water & Wind Resistant LED controller with (3) heat settings per heat zone Battery Pass Through Pocket for versatile battery placement Adjustable cuffs and waist with drop tail extended back to provide additional coverage Washer and dryer safe