Best Bet: Sporty Spice

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Photo: Courtesy of Puma

Alexander McQueen's latest collection for Puma is fitness-friendly, with warm-up jackets, tanks, shorts, and duffels. But this gray T-shirt dress stands out as something that needs to be seen beyond the walls of a sweaty gym. You can tether on a belt and dress it up, or wear it with leggings for a casual day out. Also, the knit fabric molds to your shape just enough to flatter your curves, but it's still loose enough to fit all body types. Then, when you get it dirty, you can wear it as a cover-up and head for the gym.

$170 at Shop.Puma.com.