U.S. track and field athletes will wear uniforms at the 2012 London Olympics that Nike says can shave up to 0.023 seconds off 100-meter sprint times. The speedsuits, unveiled Thursday evening in New York, are designed with dimples that mimic the aerodynamic efficiency of a golf ball. Nike said the gear's tests showed an unexpectedly big advantage in sprint times. "We couldn't believe the numbers," said Martin Lotti, Nike's Olympics creative director. "That's not just the difference between first and second place, it's about making the podium." The company says the sprint uniforms are also greener, made of nylon from 13 recycled plastic bottles.
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