Recently several fans have asked why Mama is wearing a vest in recent Berenstain Bears’ stories. Mike Berenstain provided the following answer:
My mother, Jan, began putting the vest on Mama in about year 2000. She said she was fed up with painting all those white polka dots on Mama’s dress in every book and wanted to reduce the number by covering up some of them with the vest. We’ve kept the vest ever since as a standard part of Mama’s costume.
And now you know why Mama wears a vest!