Kattis Dolls

Arco was a company that made fashions and play sets for dolls and Mattel eventually bought it. In the 90's the boxes was still marked Arco and licensed by Mattel.

The sets this year (©1998) has themed outfits. One set is connected to different sports, the other is for a day at the Zoo. Each set has three pair of footwear in different colors.
The Sports set (Fun With Sports!) has outfits to play soccer or just go to a game with popcorn - some match tickets are included, baseball, swimming, skating and to go mini golfing - with a score board and all.
The Zoo set (Day at the Zoo!) fashions has different animal prints. Some cardboard accessories are included.

Photos below are from picclick/eBay.

More and detailed photos in my (Swedish) blog.