1.What is Far-Infrared Rays? Far-infrared rays is part of the sunlight spectrum which is invisible to the naked eye. The complete spectrum of sunlight consists of visible and invisible rays. The visible rays are red, orange, yellow, green, indigo, blue and violet in colors, and the wavelength ranges from 0.4 micron to 0.75 micron. The invisible rays are Ultra Violet, X-rays, Gamma, Cosmic, Microwave, Long Wave, Electrical Wave and Infrared. The wavelength of Infrared is 0.75 to 1,000 micron, and it consists of Near, Medium and Far Infrared Rays (FIR). We live in an environment of FIR waves and our body receives and radiates them. Among the energy spectrum coming from the sun, the FIR waves are the safest and the most beneficial electromagnetic energy sources available; especially it is when the resonant frequency id from 4 to 14 microns called " Bio-Genetic Rays ". The Bio-Genetic Rays causes the water molecules in the body to vibrate and then it cause heat reaction through resonant absorption; and the heat causes the temperature under skin to increase it. Thus, caused expansion of capillaries to promote blood circulation and eliminate obstacles that hinder metabolism; and the tissues get activated to result in the formation of enzyme. In the blood stream, it is able to neutralize blood toxicity and smoothen the wall of arteries, capillaries and veins. It could also help enhance the cancer cells back to normal healthy cells. That is why the Bio-Genetic Rays is so amazing. 2.The effect of Far-infrared Rays on our human body FIR causes resonance with water molecules. It ionizes and activates water molecules in our cells and blood thus improving our blood circulation and health condition, and it improves oxygen level in our body. It can be aborted and produce warmth and harmonize with the natural life force released by the human body to enhance resonance absorption; the ability to penetrate deep into the human body. Therefore, it can be applied in many products, especially the clothes that are not only light but also thin and suitable for sports or exercise, such as the clothes for mountain climbing, skiing, and scuba diving, etc.