The Joslin Swathe is an Arm Immobilisation strap that was designed for use with the Joslin Ultimate Arm Sling. If you are looking to imobilise an arm within a sling this is the product to order in addition to the arm sling itself. The Joslin Swathe gently holds the arm securely against the body, comfortably. Made from a low profile and lightweight material which is easily adjustable. Fits either the right or left arm.