Most pocket nappies are made with a PUL (Polyurethane Laminate) layer covered with either micro fleece or cotton velour inside.
Mae’r mwyafrif o gewynnau poced yn cynnwys haen PUL (Laminiad Polywrethan) wedi’i gorchuddio naill ai â microfflîs neu felôr cotwm y tu mewn.