The Blümchen waterproof cover is made of pul with double barrier and snap closure. The front buttons allow use from 4.5 kg up to 16 kg (the fit depends on the child's build and the associated absorbent part). Internally it has two flaps that make it very comfortable with free inserts / boosters, insert folded muslins and trifold folded prefolds. Do not tumble dry and do not use optical brighteners and fabric softeners. NB: the "Turkey" version fits a few millimeters less than the previous one.