Sarah Jessica Parker's relaxed take on eveningwear makes the case for easy silhouettes at night. At last night's Friends in Deed gala, SJP layered an oversize, slouchy blazer over an embellished slip dress, hitting a pitch-perfect note between sexy and nonchalant. The silhouette is relaxed, almost like glamorous loungewear (aka, the absolute opposite of stuffy cocktail attire). To finish, she added a hint of sparkle via a few layered necklaces and a classic patent pump to tie it all together. Just shop our editors' picks to channel SJP's easy elegance.