They contain more comfortable material and fine workmanship. Touching softer, more comfortable to wear, more healthy, absorbent stronger. Each of them has one more rows of snaps which can fit better for your baby. These diapers are reusable and washable. All in One Size: The bottom three rows of snaps (the rise) are for adjusting the size to fit a small (7-15 LB), medium (12-25 LB), or large (20-35 LB) child. Simply adjust the size as your baby grows make this diaper a one size style diaper from birth to potty training.