Heated Insoles - 5 Pairs S, Foot Warmer, 100% Natural Heat, Warmers and Heated Insoles That Heat for 8 Hours, Extra Warm Foot Warmer

HEAT TIME: 8 hours foot warmer insoles with an average temperature of 39°C. No electricity, boiling or additional warming necessary for the foot heat pads. COMFORT: The ultra-thin and comfortable warm insoles are barely noticeable and suitable for every shoe bed - no matter if it's a ski boot, a winter boot, or an elegant lady's shoe. NATURAL INGREDIENTS: The thermal soles consist of iron powder, water, salt, activated carbon and vermiculite. Heated insoles are the perfect product for warm feet for children, women, and men! APPLICATION: After opening the package, insole warmers heat up after contact with oxygen within a few minutes. Insert heat warmers into the shoes with the smooth side down, and enjoy the warmth. AREA OF USE: Heat warmers are ideal for outdoor activities, winter sports of all kinds, winter walks as well as visits to the stadium and the Christmas market. Unopened, keepable for several years.