The Mobile Warming Thawdaddy Heated Vest in black is a great solution if you need to place heat inside many different garments. Featuring 3 heated panels one either side of the chest and one between the shoulder blades on the back. It’s powered by 2 small 7.4v Lithium batteries that can keep your core warm for hours. Put it on over a t shirt and fasten it by way of Velcro panels in the front for the perfect fit, then you put your jersey, jumper, hoodie or jacket on.
There is an on/off button with 4 heat settings making this an irresistible piece to have for when its cold out.