It has 100% tourmaline cotton. The magnets help to improve blood circulation, and stimulates serotonin. The far infrared and negative ions are activated by your body heat. Far infrared therapy penetrates deeply into your joints and muscles and helps to relieve pain and fights infections. Negative ions boost your mood, help to balance your blood and body PH level, reenergize and fight depression. There are three different weights. Silk is the light weight, Mongolian wool medium and cashmere is… read more