black party dresses with sleeves Long Sleeve La Femme Short Lace Dress Black / 0 Ideal for formal evenings Elegant Black Long-Sleeve Gown with

"This dress code typically consists of floor-length gowns and is [one of the] most formal dress codes for a wedding," explains Suzanne Smallshaw, senior director of fashion and styling for Rent The Runway

1.0 out of 5 stars Brand Name Calvin Klein Product Name Sleeveless Floral Scuba Belted Aline Gender Women's Color Spring Mist Multi Price $169 Rating 1Rated 1 star out of 5(1) Calvin Klein - Collared Twist Front Cotton Dress

For more inspiration, the costume party theme ideas guide covers a range of approaches worth drawing from

This universally flattering silhouette accentuates the waist and offers a graceful flow that creates a dreamy, romantic look