Little envelopes of warmth that slip inside your footwear. They are designed to work in a shoe or boot with restricted airflow. Open the package, peel off the backing, and place them outside your socks, under the toes.
- Contains 16 warmers (8 pairs).
- Lasts 5 to 6 hours.
- Place them in an airtight container to pause the oxidization process, and use the remaining heat within a few days.
- Contents are non-toxic and biodegradable, contains iron powder, charcoal, salt, sawdust, and vermiculite.