Lupine harnesses are made with a strong woven nylon, adjustable shoulder straps and an extra long sternum strap to fit a wide range of body types. Welded steel D- and O-rings and a heavy duty side-release Snap on the adjustable girth. Slide the neck loop over your dog's head and then snap the Snap on the adjustable shoulder strap. If your Lupine harness has any sort of accidental damage or hardware failure, including chewage, you can exchange it for a new harness. This guarantee does not include harnesses that are simply dirty, outgrown or lost.