Using the Klein Tools 5717 Padded Suspenders is easy. First, put them on like regular suspenders. Adjust the front and back straps according to your comfort using the VELCRO® fasteners. They're designed to fit most sizes, so you should find a good fit quickly. When it comes to maintenance, you can spot - clean them with a mild detergent and a damp cloth. Just make sure to let them dry completely before using them again. As for safety, always check the straps and fasteners before each use. If you notice any signs of wear or damage, it's best to replace the suspenders to ensure your comfort and safety.