Sienna Miller Wears A Sheer Skirt And Giant Undies To The American Sniper Premiere

It’s shaping up to be a great week for Sienna Miller!
She kicked things off with her fourth Vogue cover on Monday, and later that evening attended the New York premiere of her latest film American Sniper.
[ Related: Sienna Goes Boho-Chic On Vogue ]
She’s so relevant right now!
The 33-year-old showed off her well-honed fashion chops in a white Balenciaga dress with a sheer lower half that revealed high-waisted panties!
High-waisted panties are all the rage these days, it seems like!
But, really, if you’re going to wear a sheer skirt, you can minimize the sexy effect by wearing granny undies.
Hey, it works!
[Image via Pacific Coast News Online.]