The "Gurulia" brand from Tokai Optical Co., Ltd. As the third installment following eye masks and neck repair products, a new item has arrived to warm your core: your abdomen! This "General Medical Device" functional waist warmer utilizes the body's own heat to provide natural warmth 24 hours a day. The stretch material and zipper make it 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. The phenomenon of radiation (where heat moves from a high-temperature area to a low-temperature area) helps with fatigue recovery. In other words, efficiently warming key areas where large blood vessels pass through improves blood flow, warming your entire body. With "Waist Act," you can experience natural warmth derived from your own body temperature thanks to the latest technology materials, and the warmth lasts throughout the time you wear it. 【Suitable Size】 L size: Abdomen 80-95 cm 【Material】 Outer fabric: 95% polyester, 5% polyurethane Lining: 84% cotton, 16% polyester (natural mineral stone, 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 suit your skin, or if you experience rashes or itching, discontinue use. ○ Be careful when putting on and taking off, as putting your nails on the fabric and pulling it forcefully may cause it to tear. ○ If worn too tightly or for extended periods, take it off and on at appropriate intervals. The "Gurulia" brand from Tokai Optical Co., Ltd. As the third installment following eye masks and neck repair products, a new item has arrived to warm your core: your abdomen! This "General Medical Device" functional waist warmer utilizes the body's own heat to provide natural warmth 24 hours a day. The stretch material and zipper make it 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. The phenomenon of radiation (where heat moves from a high-temperature area to a low-temperature area) helps with fatigue recovery. In other words, efficiently warming key areas where large blood vessels pass through improves blood flow, warming your entire body. With "Waist Act," you can experience natural warmth derived from your own body temperature thanks to the latest technology materials, and the warmth lasts throughout the time you wear it.