Once opened, the disposable foot warmers or heat packs are activated by gently shaking or squeezing and can then be placed at the toe end of your shoe. They are shaped for comfort.
The heat pads remain warm for up to seven hours, ideal for anyone who gets cold feet or has Raynaud's. They then must be disposed of as they are not re-usable.They come in a pack of four pairs. Warm up your toes and feet with these warmers designed especially for those wintery days or cold nights, or if you're standing on cold ground for along time.