As long as they are new enough and have the extra little strap that buttons over the leg holes you can use them right away. With the really old ones there was a danger of small babies slipping through the leg openings became they were too big.
I like our Bjorn a lot, even better than the Ergo.
Married07.07.07.Mom to 3:Ruby 11/08and Oliver & Austin12/11
Re: Baby Bjorns?
As long as they are new enough and have the extra little strap that buttons over the leg holes you can use them right away. With the really old ones there was a danger of small babies slipping through the leg openings became they were too big.
I like our Bjorn a lot, even better than the Ergo.