The Fieldsheer Smart BT Thawdaddy Men's Heated Vest is a superior universal solution to add heat when weather conditions get cold. Designed as an instant heating solution, the ultra-thin Thawdaddy vest can be worn under a variety of jackets or over any shirt. Whether you’re riding a motorcycle, hiking, fishing, or working outdoors, the Thawdaddy delivers long-lasting instant heat on-demand. The Thawdaddy Vest features 3 heating panels to provide heat in all the right spots. Stay warm for hours with powerful, long-lasting rechargeable Lithium-Ion batteries. Use the free MW Connect™ app to adjust temperature or check battery levels. Choose from 4 heat settings to keep you warm and comfortable for hours. If you’re ready to fight the cold then look no further than the Thawdaddy Heated Vest.