ToastyFeet! Aerogel Shoe Insoles   

Toasty Feet features breakthrough technology developed for NASA. The advanced nonporous material in Toasty Feet has the highest thermal insulation value of any solid material available today, allowing it to block both heat and cold efficiently, while remaining light and thin enough to fit comfortably in almost any shoe or boot. Developed by NASA, this amazing insulating material is now available for your use. With a thermal efficiency rating of up to 10 times that of other high performance materials, Aerogel has no equal in providing protection from both heat and cold.