A one piece tank style/boy short swimsuit with striped bottom and solid top for Barbie.

Look for the pattern number at the archived site.
The website is in English & Swedish, but patterns are available in several languages.

On the archived website the patterns are listed on the left, by number and grouped on pages of about 50 patterns.
Fashion doll patterns are numbered in groups from 1 to 1139.
Accessories like hats, scarves or bags are listed in the accessory section, in groups from A1 to A64.
Bratz doll patterns are numbered in groups from 1 to 273.
Click on numbers to open a page, look for the numbered image, then for the link to the desired language below it (clicking on the image will only enlarge the picture of the item).

Most patterns are in Microsoft Office Word format (.doc).