Celebrity Zosia Mamet Pairs a Sheer Blouse and Black Bralette with Boyfriend Jeans By Lara Walsh Lara Walsh Lara Walsh is a Chicago-based writer and editor who covers all things fashion, celebrity, pop culture, travel, and food. When she’s not avidly planning her next trip, she’s writing posts for her travel blog or mapping out her next foodie adventure. InStyle's editorial guidelines Updated on August 19, 2016 @ 08:30AM Pin Share Tweet Email Photo: Courtesy Zosia Mamet is celebrating summer's impending end with the perfect last hurrah to warm weather. On Wednesday, the Girls star dropped by New York's Waverly Inn for a private dinner to celebrate the launch of Rebecca Taylor's La Vie line and the young starlet stole the spotlight in an outfit that was equal parts casual and chic. The Mad Men alum donned a skin-reveling sheer white lace collared top, which she wore unbuttoned and tied at the bottom in a flirty retro style. Under the summery button-up, the 28-year-old actress wore a black triangle bikini top as a bralette and paired the look with high-waist boyfriend jeans from the new line. She completed her ensemble with bright red sandal platforms, simple necklace chains, and rings. A swipe of crimson lipstick brought the look together. The brand celebrated its new denim and casualwear collection with a romantic garden dinner, co-hosted by Shopbop, that was complete with ivy walls, tasting menus, and olive leaf garlands. Guests at the event enjoyed pink champagne and Waverly Inn lemonade inside the Atrium dining room, which featured a running floral motif. Courtesy Zosia Mamet and Julia Garner Cheer on Jason Wu's New Grey Jason Wu Collection The La Vie Rebecca Taylor collection will be available at Rebecca Taylor stores and on shopbop.com.