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

HILARY DUFF

Downward-facing snood? Decked out in a seriously oversize infinity scarf, a colorful tank and black Skinnytees leggings, Hilary sneaks in a yoga class.