LZR Racer

The design result, called the LZR Racer, reduced skin friction drag 24% more than the previous Speedo swimsuit.

[5] Much like other suits used for high competition racing, LZR Racers allow better oxygen flow to the muscles, and hold the body in a more hydrodynamic position, while repelling water and increasing flexibility.

[7][failed verification] The suits are manufactured at Petratex, a textile factory in Pacos de Ferreira, Portugal; the technology is patented in this country.

[3] Although all body-length swimwear has since been banned from FINA competitions, swimmers are still permitted to compete in LZR Racer jammers and Kneeskins.

[13] Following the December 2008 European Short Course Championships in Croatia, where 17 world records were broken, it was felt there was a need to modify the rules surrounding swimsuits.

[14] At its meeting in Dubai in March 2009, FINA stipulated that swimsuits should not cover the neck, must not extend past the shoulders and ankles, and also limit the suits' thickness and buoyancy.

They also ruled that the fabric used must be a "textile" or a woven material and that a suit may not have any fastening devices such as a zipper (drawstrings on male jammers are allowed).