This is the knee wrap that uses graduated compression to relieve arthritic pain. The wrap has seven zones of compression that begin with light compression at the thigh, reach a firm compression at the knee, and transitions back to light compression at the calf, increasing blood flow and reducing swelling that causes arthritis. The graduated compression also helps relieve runners’ knee pain and provides support to the patella to relieve tendonitis. The lightweight, breathable fabric wicks away moisture and it's slim, contouring design allows it to be worn comfortably under clothing. For proper sizing, measure circumference of area above the patella: S (11"-12"), M (13"-15"), L (16"-18"), XL (19"-21"), and XXL (22"-24").