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.