The "Gurulia" brand from Tokai Optical Co., Ltd. As the third installment following eye masks and neck repair, a new item has arrived to warm your core: your abdomen! This "General Medical Device" functional waist warmer uses the body's own heat to provide natural warmth 24 hours a day. Made with stretch material and a zipper, it's easy to put on and take off even when you're out and about. It's designed to be worn as an undergarment, making it convenient for commuting or work. By raising the temperature of the area it touches, it promotes improved blood circulation. Through the phenomenon of radiation (fukusha), where heat moves from areas of high temperature to low temperature, it leads to fatigue recovery. In other words, by efficiently warming key areas where thick blood vessels pass through, it improves blood flow and warms the entire body. With "Waist Act," you can use the latest technology materials to enjoy natural warmth derived from your own body temperature, and the warmth lasts continuously while you wear it. 【Suitable Size】 LL Size: Abdomen 90-105 cm 【Materials】 Outer Fabric: 95% Polyester, 5% Polyurethane Lining: 84% Cotton, 16% Polyester (Natural Mineral, Made in Japan) 【Washing and Storage Instructions】 ○ Do not use a washing machine's spin cycle. Do not use chlorine bleach. After washing, shape and hang to dry. ○ If it does not agree with your skin, or if you experience rashes or itching, discontinue use. ○ If you dig your nails into the fabric and pull it forcefully, it may tear. Please be careful when putting it on and taking it off. ○ If you wear it too tightly or for a long time, take it off and on periodically. The "Gurulia" brand from Tokai Optical Co., Ltd. As the third installment following eye masks and neck repair, a new item has arrived to warm your core: your abdomen! This "General Medical Device" functional waist warmer uses the body's own heat to provide natural warmth 24 hours a day. Made with stretch material and a zipper, it's easy to put on and take off even when you're out and about. It's designed to be worn as an undergarment, making it convenient for commuting or work. By raising the temperature of the area it touches, it promotes improved blood circulation. Through the phenomenon of radiation (fukusha), where heat moves from areas of high temperature to low temperature, it leads to fatigue recovery. In other words, by efficiently warming key areas where thick blood vessels pass through, it improves blood flow and warms the entire body. With "Waist Act," you can use the latest technology materials to enjoy natural warmth derived from your own body temperature, and the warmth lasts continuously while you wear it.