Elsa Hosk's Thong-Exposing Sheer Dress Is Going Viral on IG Right Now

Elsa Hosk looks away from the camera with her hand on her face wearing a blue dress

(Image credit: Getty Images Courtesy of Tiffany & Co.)

It's safe to say that celebs are obsessed with Alaïa dresses right now. Last week, Rosie Huntington-Whiteley stepped out in a thong-exposing pink Alaïa dress at Victoria Beckham's birthday party. Now, Elsa Hosk is having her own underwear-revealing moment wearing the same brand. In an Instagram photo taken at a Tiffany & Co. event in Los Angeles, Hosk wore a cheeky long-sleeve Alaïa maxi dress in a dreamy baby blue hue. Hosk's post has only been up a few hours but has already racked up over 100,000 likes and nearly 700 comments.

Plus, it's not just her followers who adore the look. The Instagram account @checkthetag conducted a poll asking whether fans liked the outfit, and a whopping 89% said yes. Who am I to argue with cold hard data? Scroll down to see Elsa Hosk's newest outfit and shop sheer blue dresses for yourself.

Elsa Hosk is photographed from behind wearing a light blue maxi dress with visible thong underwear

(Image credit: @elsahosk)

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Associate Director, Fashion News

Erin got her start as a Who What Wear intern over 13 years ago—back when the site only published a single story per day. (Who What Wear has since increased that number twentyfold.) She graduated magna cum laude from USC, which is how she ended up moving to Los Angeles from her hometown of San Diego. In college, she also interned at Refinery29, where she was promoted to editorial assistant and then assistant editor. After nearly three years at R29, she came back to WWW in 2016, where she currently holds the title of Associate Director of Fashion News (as well as the unofficial title of resident royal expert—in case you haven't noticed her numerous Meghan Markle and Kate Middleton stories). She spends her days trying to incorporate her idols, Anna Wintour and Roger Federer, into as many stories as possible. Outside of work, she loves tennis, classic rock, traveling, and smothering her dog with affection.