In-vest in this Unisex USB Graphene Heating Vest Choose from navy blue, camouflage, red and black  Choose from M-6XL Please see images for full size guide With a zipper closure for ultimate snug effect  Features 3 temperature modes  Simply switch between modes at the touch of a button  The perfect winter companion The heat is on with this deal on the Unisex USB Graphene Heating Vest - save 68%