Dark purple short sleeved dress. Dress print of light purple circles with darker purple highlights. Short gathered sleeves. Square neckline. Front bodice yoke and waistband. Purple grosgrain ribbon on bottom edge skirt; simple bottom hem. Velcros up the back.
Black felt-molded hat. Trimmed with purple grosgrain ribbon at brim and around hat band. Three gathered purple roses with leaves for trim at front left. Two purple grosgrain ribbons attached to inner of hat to tie hat on.
- In advertisements, the dress is marketed as handmade by Ruth Walker.
- A special edition mini doll of Addy wearing the Sunday Best and an abridged copy of A New Beginning: My Journey with Addy was released in 2016. The hat was not included with the mini doll and she is instead given two purple hair ribbons.