This listing is for 2 reusable bags 4 inches by 7 inches. The outer fabric is high quality cotton and the interior is lined with waterproof nylon. Liner and outer fabric are sewn separately so all seams are hidden. Bag closes with a full length of velcro aross top of bag. Velcro is secured through both layers of fabric so there's no stress on the liner when the bag is pulled open and closed.
So easy to care for. Just wipe liner with a damp cloth after use. Or if really messy just either rinse by hand or toss in washer. Air or line dry.