The Shield ZL6760 Elastic Long Knee Support is made with a combination of Nylon, Cotton, and Spandex materials, specifically designed for four-way stretch to target essential areas and allow for a full range of motion. The compression technology promotes blood flow for faster recovery, while the breathable material ensures comfort throughout the day. Please note that this product should not be used if the user has eczema or skin trauma and should be discontinued immediately if any abnormalities occur. For best results, hand wash in warm water with a mild soap and air dry. This product is sold in pairs and is available in three sizes: Small (14x14x40), Medium (15x15x41), and Large (16x16x42).