I notice that several bloggers have been out in the cold weather recently (lucky blighters!) and have suffered from frozen shoes in the morning. Recent trips by Martin and Mac have testified to this unpleasant early morning experience. In the immortal words of Captain Mainwaring “here’s a little trick I picked up”.
Last year in November it was very cold in the Lakes. The water froze in my water bottle when I was out during the day. Not surprisingly my boots (Montrail Cirrus GTX) were a bit damp inside. At night, wanting to dry them out and prevent them from freezing, I popped a self-activating hand warming pouch in each boot. These produce a gentle heat when exposed to air and can be used in gloves to warm your hands and last for around ten hours. I covered to openings of the boots to keep in the warm air. By morning, the insides of my boots were dry and still faintly warm. Be careful with heat mouldable insoles. I removed mine first in case they deformed. Simple, but effective.