These fluffy faux fur mini backpacks are really easy to use. You can carry them on your back for hands - free convenience, perfect for a day out or a short trip. When it comes to using, just open the zipper and put your small essentials like your phone, keys, or lip balm inside. As for the warning, be aware that this product contains chemicals that might be harmful, so avoid any direct contact with your skin for long periods. To maintain these backpacks, gently brush the faux fur with a soft brush to keep it fluffy. If it gets dirty, use a mild detergent and a soft cloth to spot - clean the stains. Don't machine - wash or dry them, as it may damage the faux fur and the structure of the backpack.