I've loved the fit of our BBOS.
really reliable containment. I'm another one with skinny children and the aplix version does fit better than the popper ones for us.
I've had the hemp/mf combo insert. But I think the newer ones now come with just mf, but you can always replace it with something more absorbent.
They've washed and washed really well too.
Ive not had a bbss so sorry can't offer any comparison, but am finding the wnss better fitting for my skinny ones compared to our wnos
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