The foot pocket sheet is an easy insole for shoes that can be placed in a shoe. Warm from the entire sole so your feet stay warm. The entire foot type makes it comfortable from the foot to the heel. The thin molding fits the foot well, so it does not feel uncomfortable. Just place it inside your shoes to warm your cold feet. The left and right shape matches your feet, so you can warm your entire foot. Thin profile makes it easy to walk. 8 hour type; Mineral adsorpant and antibacterial non-woven fabric reduce odor inside your shoes. Antibacterial deodorizer blend; Color: Beige; When you open the bag, heat starts to generate. Maximum Temperature: 99°F (39°C); Average Temperature: 88°F (35°C); Lasting Time: 8 hours (measured value intended for use in shoes); Made in Japan; Manufacturer: Estate