Made from fibers of bamboo charcoal and Tourmaline, urethane elastic fiber and cotton yarn . All the steps are finished through one process by computer-controlled loom. The vest features with outstanding elasticity and people will feel soft and comfortable when wearing it. It improves the microcirculation of people’s body, strengthens metabolism and increases immunity. What’s more, the material is breathable, with strong moisture absorption and obvious sterilization eliminating smell effect. It keeps people’s body always comfortable. Due to the statistics from the research of China State Authorized Test Department, this seamless vest releases anion as much as 2710 per cubic centimeter, while shooting far IR percentage is more than 87%. It is natural, healthy, environmental and color-fade-free and without any harmful substance. Hua Kang produces far IR Tourmaline seamless suits, vest and underwear. They customize due to our customer’s request also.