This diaper has a double liner: unattached waterproof pocket slipped into the waterproof pocket stitched into the diaper. Dump, wash with soap and warm water, dry, and pop the liner back in. The easier way to use the diaper is to take a piece of paper towel and fold it to make a liner. When the diaper needs to be changed, simply throw away the poopy liner. You can still sanitize the waterproof liner stitched into the diaper.