These are a new wet bag. They are roughly 12 x 13 and will fit 5-8 wet diapers depending on the sizes. Great for when you're on the go and need somewhere to put your soiled diapers. They are different from other diaper wet bags, since instead of a zipper closure they have aplix closure. This allows for quick, one handed closing, and helps to keep any unpleasant odors inside the bag. Happy Heinys wet bags/totes also come in many colors and prints. Match your baby's diaper and your tote when you're out on the town. Oh too cute!