Using the Mad Rock Bolt Chalk Bag is simple. First, adjust the waist - belt to a comfortable and secure fit around your waist. Open the large opening of the bag and dip your hands in the chalk. The soft interior will help spread the chalk evenly on your hands. To keep your climbing brush handy, use the elastic brush holder. You can store small items like keys or a phone in the zippered back pocket, and other accessories in the side mesh pouch. When it comes to maintenance, make sure to keep the bag dry. If it gets dirty, you can gently wipe it with a damp cloth. Avoid machine - washing as it might damage the 600D Polyester and 16oz Waxed Canvas material. Also, don't overfill the bag as it might affect its shape and functionality.