The Mobile Warming Peak Vest is a heated vest for cold days outdoors or at sporting events. The Windshark fabric construction features 4-way stretch for movement, plus offers wind- and water-resistance. Whether worn as a midlayer or outer layer, turn on the heat when the day gets colder, and it'll warm up the core in moments. Hiking, skiing, football games, and hockey games, the extra heat is welcome on a cold day.