Tired of your feet getting cold? ArcticShield Boot Insulators contain a heat-resistant thermal material that returns over 90% of your body heat back to you. These boot insulators slip right over your shoes or boots, keeping your feet warm so you can stay out longer in the woods, treestand, or blind. Constructed of a windproof, water-resistant polyester shell and liner, the ArcticShield Boot Insulators are lightweight and packable, easily rolling up to fit into most pockets or backpacks to carry to your treestand or blind. A perfect fit for any type of hunting or outdoor activity when you are sitting for long periods of time in cooler weather, like ice fishing, football games, tailgating, and snowmobiling. Imported.