Originally Posted by both-teams-played-hard
The photos appear from Spring Training. Maybe the knits weren't officially introduced.
Anyway, that dude has a a nice grill with some gold inlays. He also has a thick curb-link chain. Trendsetter.
Did the hats change from wool to some sort of nylon, at the same time of the flannel to knit era. The patch is odd. Appears to be a souvenir item.
Here's a link to the Allen photo. It's dated April, 1972