BEAVERTON, Ore. (AP) -- The world's fastest sprinters already get the super hero treatment from Nike. Now they'll dress like them, too.

  Preparing for the Sydney Olympics, Nike on Thursday unveiled its "Swift Suit," a full-body uniform that the company hopes will be worn by a select group of athletes.

  The suit, which has a hood with mesh ear holes and stirrups, is made with dark colors of five different fabrics. It's designed to focus on runners' muscle-temperature and aerodynamics.

  The seams are all in the back of the suit, the front zipper is hidden and the sleeves extend to cover part of the hands -- all designs aimed at producing better results by reducing air-flow separation.

  "It's awesome," sprinter Marion Jones said. "When I'm in my running motion, it feels like everything is where it needs to be. I wouldn't consider it a 'second skin,' but it does what it's made to do, and hopefully that's run very fast."

  The suit is being pushed for sprinting events, up to 400 meters, and will be debuted at the Prefontaine Classic on Saturday in Eugene. How well it's accepted after that depends on who wears it and how often.

  Nike, which is an Olympic sponsor in Sydney but cannot use Olympic tie-ins in the United States, will offer the Swift Suit to the athletes it sponsors, as well as all Americans headed for Sydney. But that's not a guarantee that every available athlete will wear the suit for every race -- or even every trial of a race.

  "If I hadn't competed in it a number of times, I wouldn't compete in it this weekend," Jones said. "I am ready to run fast -- period. I am probably going to do that whatever. It's going to be interesting to see this weekend ... how much faster I am going to run. But it's about performance, that's what it comes down to."