Replacement lining for Bell helmets. made from Virus® Cool Jade™ material designed to cool temps in extreme conditions. Features Virus® Cool Jade™ fabric Anti-odor Removable Washable Suitable for Bell Moto-10 Cool Jade™ fabric Virus® s Stay Cool Performance Series is engineered for staying cool, dry, & comfortable. The Cool Jade™ fabric has been infused with recycled jade to create a natural cooling effect. The ultra-wicking construction combined with Cool Jade™ infused yarn decreases your skin surface temperature, keeping you comfortable, dry, & cool.