The medical waist made with germanium titanium and patented composite ingredient. Using Nano-scale infrared technology, and it enhance fingertips blood flux 42.98%, blood speed 52.36%, and raise temperature 1.3℃.The United States Food and Drug Administration, CE marking for medical devices of The European Commission as well as The Taiwan Ministry of Health and Welfare certify this Green Energy Nano Technology product as a medical device. According to Taiwan Texture Research Institute, the linen promotes blood flow volume by 42.98%, blood flow speed by 52.36% and rise temperature by 1.3 °C. The maximum skin sensitivity test and skin irritability test by Super Laboratory revealed zero result. When compared to untreated cells, the cell proliferation observed in treated group is increased by 22.1%, proving the safety and efficacy of the medical waist. Recommended for: Elders, children and women who are sensitive to coldness in winter. Individuals engaging in prolonged driving or sitting.