Our Supernatural Compression (short sleeves) in Supernatural Merch is made of 100% polyester and it’s thin. It is a self-styled compression shirt that helps support the body’s natural recovery process while preventing injuries such as bicep tendonitis, herniated discs and sports related injuries. A short blog article about compression socks from the popular TV show Supernatural. The article talks about how these compression socks help with recovery time, blood flow, and muscle growth.