LZR Racer

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The LZR Racer (pronounced as "laser") is a line of competition swimsuits manufactured by Speedo using a high-technology swimwear fabric composed of woven elastane-nylon and polyurethane. The swimsuits are made in body-length; they compress the body and trap air for buoyancy. The LZR Pro and LZR Elite were launched on 13 February 2008; the higher-priced LZR Elite was replaced by the LZR Elite 2 in early 2014.^[1] The LZR X was launched in early 2015. The technology is patented in Italy, and protected worldwide.^[2]

The swimsuits have been found to improve performance, and permitting their use in competitive swimming has been controversial, and led to changes in regulations. People have gone so far as to label their use as "technical doping". They were deemed to provide an unfair advantage to the wearer by FINA, which led to a ban on all swimsuits of a similar nature.^[3]