Depending on your set, most, if not all, suspension trainers have adjustable straps for customizing length for proper fit and use for your workout. If your equipment has strap buckles, it may have a locking mechanism for safety, so thoroughly read the manual instructions before attempting to adjust. The important thing to remember is to unlock and relock any safety feature, slide both straps to the same, safe, and appropriate length for the exercise, and check that straps are laying flat and untwisted.