Speedo and USA Swimming have extended their partnership by an extra eight years in a deal that takes the arrangement through to 2012.

"Combining the efforts of the world's leading swimwear brand and the world's most successful national swimming federation is the most effective way for both of our organisations to grow over the next eight years," said Joe Gromek, president and CEO of The Warnaco Group Inc, Speedo North America's parent company.

Speedo will continue to be the official deck supplier for all national teams, including the 2008 and 2012 Olympic teams.

The contract also bolsters Speedo's dominant competitive swimwear sales position as the brand will retain exclusive retail sales rights at all USA Swimming national events.

Meanwhile, Speedo and USA Swimming's joint preferred dealer network strengthens the relationship at the grassroots level.

"In the Olympic movement, there is no relationship that is as collaborative as Speedo and USA Swimming," said Roger Williams, President, Warnaco's Swimwear Group.

"By working together, both organisations gain broad visibility while driving sales and membership."

In August, Speedo announced a four-year sponsorship agreement with FINA, the International Federation of Swimming. The agreement is the first ever exclusive four-year deal FINA has entered into with a swimwear brand.

Additionally, Speedo has long-term relationships with US Olympic swimmers such as Phelps, Natalie Coughlin, Amanda Beard, and Ian Crocker.

Speedo is a registered trademark of and used under license from Speedo International Ltd. Warnaco Swimwear Inc, a division of The Warnaco Group Inc, is the authorised licensee of the Speedo trademark in North America and the Caribbean.