Cin2 Response: The sling support has adjustable buttons and button wholes. Just like a man’s shirt, the button fits into the button slot. If you take the strap and stretch it from one end to another, you will then see four other openings. You can then take out the button from the middle opening and chose the fit that best suits your needs.
The elastic should remain in a loop shape form and all “three” parts must be saddled into the loop as well."
Alan from Los Angeles, CA