New Year, New You in 2014

Sweating in Style: Stars' Workout Gear

See Reese Witherspoon's black-and-yellow yoga uniform, Gabrielle Union's geometric get-up and more celebs' fashion-forward, fitness-friendly outfits

GABRIELLE UNION

Few people will ever play like Venus Williams, but at least they can look like her on the court. Gabrielle wears a black-and-white geometric tank and a white skirt from the tennis pro's line, Eleven by Venus, plus black sneaks and a white hat.