Vulkan Advanced Elastic Knee Support The Vulkan Advanced Elastic Knee Support is ideal for sprains and strains, and can be easily worn under clothing for daily prevention and protection. The superior performance materials help the body's natural healing process. The Knee support provides comfort to the knee muscles and tendons while retaining heat and increasing circulation, and offers support and compression to the joint to control and limit swelling. Features: - Nona Flextra Technology - Ideal for sprains and strains - Easily worn under clothing for daily prevention and protection - Helps to control and limit swelling - Latex free