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She usually impresses us with her designer wardrobe and pricey purses, but yesterday it was her sexy spandex and sun-kissed glow! (Of course, she brings this $1,100 Goyard bag with her just about everywhere...)

Hilary Duff and her son Luca were snapped en route to the baby gym in Toluca Lake on Tuesday, and the 25-year-old singer/actress showed off her slimmed down figure in a pair of bright blue tights. Gotta stay in those size 26 skinnies!