The Belly Bandit is an abdominal compression wrap designed to assist you in bringing your body back to its former beauty and proportion after child birth. Hand wash. Minimizes swelling. Adds abdominal support and comfort after C-Section. Helps minimize stretch marks. * If you are purchasing a Belly Bandit early on in your pregnancy best rule of thumb is to go up 1 to 2 band sizes from your pre-pregnancy size. * In the eighth month many women will be the same size as they will be post delivery. Simply measure the circumference of your waist starting at your belly button. Choose the corresponding band for your size. * Just prior to delivery simply subtract 3 to 5 inches from your waist measurement. Select the corresponding band for that size. * If you purchase your Belly Bandit after you give birth, simply choose the corresponding band for your waist size.