Originally Posted by KristiMetz
So, you guys are saying that getting some elastic and carrying it along while knitting would not help the issue?
Sure it would! At least, in theory. I think there is even 'invisible' elastic thread that might work for this hat you've already made. I think you could just thread a needle and run it through your stitches on the inside - maybe 2-3 rows, about one-quarter to a half inch between the rows? It would be worth a shot.
And then for a new hat, you could carry the elastic along with the yarn either for the entire hat or just along the bottom half.