If this question has been asked before sorry...
I searched for it and didn't find it

At what age does a Lab's adult coat come in?
Does it vary?

I think it varies.

I have bought two that had hard thick adult looking coats by 12-14 weeks, and another that had more of a puppy coat until closer to 10 months, although she did shed some puppy fuzz and look a little moth eaten at about 12 weeks.

Thanks ... the sire & dam have very nice thick coats and 2 of the pups coats at 17 months are not as thick... genetics, ugh!