Physical Action Sports Copper Compression Knee Sleeve, Supports Knees During Sports & Exercise Activities Like Running, Ease Joint Pain & Arthritis, Unisex for Men & Women, Anti-slip Band, Black RAPID RECOVERY- Enhance athletic performance through increased blood flow, quicker recovery and decreased muscle soreness, and less fatigue EXCEPTIONAL COMFORT- Gentle but firm compression allows for everyday use. Silicone bead under top band helps sleeve stay in place SUPERIOR COPPER CONTENT- 88% copper infused nylon, 12% spandex - copper inhibits odors & bacteria. Breathable and comfortable material wicks away moisture & keeps skin dry For correct fit, SEE PRDOUCT DESCRIPTION BELOW