white bell sleeve dress Princess Polly Lukea Long Minidress in at Nordstrom, Size 8 24 Hips Women's Dresses Bell Sleeve Layered

Benett Images Sienna Miller attended a star-studded party in Ibiza in her signature boho style, offsetting her golden tan with a chic all-white outfit

Its delicate laser-cut lace adds a formal touch to the otherwise casual shirt-dress style, and a sash at the middle defines the waist for a flattering finish

Theres Beaufilles bralette-shaped cutout for the bold at heart, or Mara Hoffmans subtler take that's equally as appealing

The voluminous skirt adds drama, while the soft color keeps things sweet and playful

Fortunately, theres less need to worry about your bra since the flounce-y top renders it practically invisible

Made from a cotton and polyester blend, its machine washable and easy to care for