Ships from Hong Kong. Material: bamboo charcoal fiber and spandex. This Knee Pad has the following functions : Helps to provide relief and compression//Keep warm/Reduce knee pain symptoms and swelling/Faster and easier recovery after your workout/More effective warm up/Improve your performance with better muscle support/Stays in place and does not slide down during your activity. Suitable for all sports and athletic activities. Package includes: 1 pair of knee support.