Our twins wore layers Naty since birth. Today they have 1 year and 4+ size suits them. Functionally, these layers are always satisfied us. They fill out their basic mission. They are easily positioned, not nagressent baby's skin and are effective even at night. Their most is of course what respect the environment. They offer this point of view a good compromise for the parents aware of the environmental problems posed by conventional diapers but not to the point of séquiper washable and no layers if leakproof Their least because jen see a still, especially with 2 baby, this is their price. They remain more expensive than conventional layers. This is why we buy them occasionally but have not fully adopted them.