A Natural Ingredient, Environmentally Friendly, Instant Heat Source. HotShotsHeated Insolesare specially designed to operate in a low oxygenenvironment such as boots and shoes.
Simply remove the paper backing and place the adhesive side of the HotShotsHeated Insoleon the outside of the sock, at the bottom of the foot, starting at the toe area.
Air Activated Instant Heat that lasts up to8 hours.
Just open package and expose to air. No kneading or shaking necessary.