This simple guide should help you. All you need is a tape measure!
Not sure which size bib to go for?
Bandana / Cotton Bibs:
Neck size 30–35cm, 17cm drop from chin to point of the bib.
Neck size 35–40cm, 21cm drop from chin to point of bib.
Neck size 40–45cm, 23cm drop from chin to point of bib.
These are age rated on each product, look at the product details to see if they are suitable.
These come in one size, 185mm x 490mm
For newborns, size 2, 3-6 months
One size for newborns