Try our Organic Cotton Muslin Flat Diapers and you will be a believer. There are many reasons why flat cloth diapers have been used for centuries and are still widely used around the world. First of all, they allow for a customizable fit for babies on any size. For parents that have used them and other cloth diaper types, flats are usually their favorite and they report them as being the most leak free. Flat diapers are easy to clean, line dryable, super-soft, durable, economical and especially for our organic flats they are the most sustainable choice for our planet. These flat cloth diapers come in two sizes. The Newborn fits 6-12 pounds has unwashed dimensions of 20x28 inches. The Onesize fits 12-30 pounds has unwashed dimensions of 28x30 inches. The Onesize can be used on newborns as well but will be a little bulky until your baby grows into the Onesize. These diapers require folding to fit, the use of pins or diaper fasteners and waterproof diaper covers.