Charlie Banana® 2-in-1 Reusable One Size diapering system uses the same elastic material as the former One Size system, but parents can now adjust the diaper with the no-slip, bra-strap design, making it possible to change the diaper from small to large in one easy step. The sizing adjustment straps are tucked nicely in the interior fleece so no part of the elastic or adjustment system touches baby's delicate skin. This diaper comes with TWO free inserts! How 2 in 1 Works We love cloth diapers for their many benefits. But after speaking with many cloth-diapering parents, we realized they were still buying disposable diapers for certain occasions, such as holidays and drop-offs with grandparents. Charlie Banana® diapers are a 2-in-1 reusable diaper system. Its a cloth diaper but with a smart front panel that gives you the option of tucking in a disposable pad for those special occasions. With Charlie Banana® diapers, you get the best of both diaper worlds!Diaper Materials Shell - Face : 100% Polyester Shell - Back : Polyurethane Lining : 100% Polyester Decoration : 100% Polyester Insert : 66% Biconstituent Fiber (80% Polyester 20% Nylon) 34% Polyester