To use this shoulder bag, simply unzip the top, put your things like phone, wallet, and keys in the main compartment or the interior pocket. Carry it by slinging the strap over your shoulder. When it comes to maintenance, keep it away from direct sunlight and rain to prevent damage. If it gets dirty, use a soft, dry cloth to gently wipe the surface. Don't use harsh chemicals or abrasive cleaners as they may harm the leather. With proper care, your bag will look great and develop a beautiful patina over time.