FuzziBunz® Adjustability The FuzziBunz® ONE SIZE diaper is adjustable through adjustable elastic, NOT snap downs on the front of the diaper like most one size diapers on the market today. Similar to adjustable waistbands for children and maternity wear, the waist and legs have been made customizable through a button / elastic adjustment system. So instead of 3 length settings, you can set to 8+ very customizable sizes. Instead of NO waist settings, you have up to 4+. So you have a SUPER adjustable diaper without an excess of snaps. It may take a bit of "adjusting" to get to the right size, but when you find the right fit, you set it and forget it. About Durability In a One Size diaper 'durability" is especially important. You want that diaper to fit for 3+ years from the time your baby is born until the time they are out of diapers....and possibly for other children. FuzziBunz® are already built to last. After 10 years