Sienna Miller is busy promoting her new movie, American Sniper, with Bradley Cooper. For the premiere in New York on Monday, the actress slipped into a white see-through frock by Balenciaga, then teamed the piece with a dazzling collar necklace and a pair of white ankle-strap pumps. Thankfully, Sienna had the sense to wear the right underwear to go with the revealing dress. She chose a pair of granny panties to keep the dress in check. As a result, she nailed the whole getup perfectly — with class.

sienna miller premiere american sniper white balenciaga dress

sienna miller premiere american sniper white balenciaga dress 3-horzSienna Miller attends the premiere of American Sniper in New York City on December 15, 2014

How do you like Sienna’s latest red carpet style?

I think she looks fabulous. Take note Kim K., this is the right way to wear a see-through dress. While I prefer slips, granny underwear is the key if you want to wear knickers underneath such frocks.

Sienna’s dress is from Balenciaga’s spring 2015 collection so you won’t be able to get your hands on it yet. Her shoes are also a mystery for now because I couldn’t find any information on the pair. I’m thinking Givenchy, but they could also very well be from Balenciaga.

In any case, here’s a pair from Topshop that comes in the same silhouette. You can grab these sandals and pair it with a sheer dress a la Sienna. It would be the perfect winter white outfit to wear to a party this holiday season:

topshop rolo ankle strap sandalsTopshop Rolo Ankle Strap Sandals, $40 (was $75)

jean paul gaultier strapless dress-horzJean Paul Gaultier Strapless Dress, $425