RELIEF FOR PAINFUL, ARTHRITIC KNEES. The Imak® Arthritis Knee Sleeve provides mild compression for warmth and helps increase circulation, which ultimately helps reduce pain and promote healing. Ideal for chronic pain from arthritis, fibromyalgia, overuse or other conditions. Tri-band technology holds sleeve securely in place and helps prevent rolling. Vented back for breathability. Soft, breathable cotton/spandex. Washable. Measure 4” above knee cap.