Using these crossbody bags is super easy. Just put your essentials like phone, wallet, and keys inside and wear it across your body for hands - free convenience. When it comes to cleaning, you can use a mild soap and a soft cloth to gently wipe the surface. Avoid using harsh chemicals as they may damage the nylon material. Always keep the bags away from sharp objects to prevent scratches. Also, be aware of the warning about the chemicals in the product and take necessary precautions.