The komfies come with such a unique feature that makes them the best slipper out there. You can heat up the small clay inserts for an extra amount of heat.
Of course, I had to test it out. I removed the clay inserts and popped them into the microwave. I made sure to only heat them up for 30 seconds. Then I placed them back in the komfies. It was surprising how easy this was to do.
When my feet slid into the Komfies, I thought I could cry. The extra warmth felt so good. It was extremely soothing.