2 sets 2 pieces to switch and mix according to taste available in fun packs pack of 2 baby printed cotton pyjamastop opening with press studs on the back or frontelasticated basewhat you need to know these pyjamas can be switched and mixed sensible to keep the baby warm the top part is joined to the bottom with press studs resistant press studs for frequent clothes and nappy changesbottoms with feet up to 74 cm anti slip foot base from 74 cm for those babies that are learning to walk fo