i've asked before about wool and how you fit it under clothes. to my understanding you either buy clothers too big or where them "as" clothes. if you where them as clothes, how does this work? you have a shirt that matches the longies, then you don't put the same longies back on when you change their diapers, do you? if no, then do you change their top everytime you change them. I've seen outfits sold with longies and shorts or covers and i don't understand wool enough to know how this works.