Launched in 1979, Tourmaster is a leading brand of high-tech motorcycle apparel designed for serious riders who pile on the miles, rain or shine. Women design, style, and fit. New four-level push button 7.4v design. Wind-Shark® soft, breathable, and treated waterproof fabric shell construction. Microfiber-lined collar, arms, and body of jacket. ESO™ locking front zipper, front hand pockets, inside storage pocket. Shock cord waist adjustment. Lycra® cuffs for comfortable and secure fit. Three 6.5" x 2.5" heating panels lined with steel alloy fiber elements. Optimum placement of heating panels, with two on the chest and one on the back. Battery life ranges from 2.5 hours on high to 10 hours on low temperature setting. Surface temperature ranges of 135° / 100%, 120° / 75%, 105° / 50%, 90° / 25%.