A detail to highlight is its composition with 100% natural materials, such as wool (the sole of the slipper) and cotton (the rest of the product) as we are aware that when you suffer from cold feet is due to poor circulation, and natural materials absorb the sweat that can be produced avoiding cold feet. The best gift for your health, the microwavable heated slippers. All our models include an instruction booklet with the methods of use and a nice box perfect for gift giving. If you want to make a gift that is useful, beautiful and original, do not hesitate a second longer to get the foot-warming slippers. It will be a total success, when they discover all the possibilities it has, they are thanking you for a long time.