By combining lightweight, abrasion resistant nylon with conductive thread heating elements, our heated women&';s vest is your perfect solution for keeping warm on the go. The Dune Heated Women&';s Vest provides up to 10 hours of electric warmth! Available in four colors (Plum, Onyx, Moss & Horizon) this vest has the ability to match any mood mother nature tosses at you. A low setting for those brisk days, medium for the cold ones and high for the bone chillingly "why do I live here?" ones! Our ultra compact battery supplies 3x the juice of other competitors and has a USB port for easy mobile charging.