Tight, form fitting and breathable compression fabric maintains joint stability; Premium materials 4-way stretchable to provide the best possible comfort and fit; Anti-microbial, anti-odor and breathable materials for all skin types; Breathable 3-D weaving method helps to reduce stiff muscles and joints; Moderate relief from arthritis, post-surgery pain, sprains, inflammation, and other knee strain; Fits right or left knee; 62% Nylon, 16% Spandex, 22% Elastic